Set unused bits of extended fuse to 1

Avrdude has changed the way it handle unused bits in the extended fuse for atmega 328 and atmega 168, they are now at 1 instead of 0.
See http://svn.savannah.nongnu.org/viewvc?view=rev&root=avrdude&revision=1335 for more info.
This causes avrdude to fail when one try to write the fuse with the unused bits at 0, because the value it read back is not the same than the one it tried to write. This commit fixes the fuse value for all boards that use atmega328 or 168.

Author: descampsa

hardware/arduino/avr/boards.txt

@@ -66,7 +66,7 @@ uno.upload.speed=115200
 uno.bootloader.tool=avrdude
 uno.bootloader.low_fuses=0xFF
 uno.bootloader.high_fuses=0xDE
-uno.bootloader.extended_fuses=0x05
+uno.bootloader.extended_fuses=0xFD
 uno.bootloader.unlock_bits=0x3F
 uno.bootloader.lock_bits=0x0F
 uno.bootloader.file=optiboot/optiboot_atmega328.hex
@@ -103,7 +103,7 @@ diecimila.menu.cpu.atmega328.upload.maximum_data_size=2048
 diecimila.menu.cpu.atmega328.upload.speed=57600
 
 diecimila.menu.cpu.atmega328.bootloader.high_fuses=0xDA
-diecimila.menu.cpu.atmega328.bootloader.extended_fuses=0x05
+diecimila.menu.cpu.atmega328.bootloader.extended_fuses=0xFD
 diecimila.menu.cpu.atmega328.bootloader.file=atmega/ATmegaBOOT_168_atmega328.hex
 
 diecimila.menu.cpu.atmega328.build.mcu=atmega328p
@@ -117,7 +117,7 @@ diecimila.menu.cpu.atmega168.upload.maximum_data_size=1024
 diecimila.menu.cpu.atmega168.upload.speed=19200
 
 diecimila.menu.cpu.atmega168.bootloader.high_fuses=0xdd
-diecimila.menu.cpu.atmega168.bootloader.extended_fuses=0x00
+diecimila.menu.cpu.atmega168.bootloader.extended_fuses=0xF8
 diecimila.menu.cpu.atmega168.bootloader.file=atmega/ATmegaBOOT_168_diecimila.hex
 
 diecimila.menu.cpu.atmega168.build.mcu=atmega168
@@ -148,7 +148,7 @@ nano.menu.cpu.atmega328.upload.speed=57600
 
 nano.menu.cpu.atmega328.bootloader.low_fuses=0xFF
 nano.menu.cpu.atmega328.bootloader.high_fuses=0xDA
-nano.menu.cpu.atmega328.bootloader.extended_fuses=0x05
+nano.menu.cpu.atmega328.bootloader.extended_fuses=0xFD
 nano.menu.cpu.atmega328.bootloader.file=atmega/ATmegaBOOT_168_atmega328.hex
 
 nano.menu.cpu.atmega328.build.mcu=atmega328p
@@ -163,7 +163,7 @@ nano.menu.cpu.atmega168.upload.speed=19200
 
 nano.menu.cpu.atmega168.bootloader.low_fuses=0xff
 nano.menu.cpu.atmega168.bootloader.high_fuses=0xdd
-nano.menu.cpu.atmega168.bootloader.extended_fuses=0x00
+nano.menu.cpu.atmega168.bootloader.extended_fuses=0xF8
 nano.menu.cpu.atmega168.bootloader.file=atmega/ATmegaBOOT_168_diecimila.hex
 
 nano.menu.cpu.atmega168.build.mcu=atmega168
@@ -459,7 +459,7 @@ mini.menu.cpu.atmega328.upload.maximum_data_size=2048
 mini.menu.cpu.atmega328.upload.speed=115200
 
 mini.menu.cpu.atmega328.bootloader.high_fuses=0xd8
-mini.menu.cpu.atmega328.bootloader.extended_fuses=0x05
+mini.menu.cpu.atmega328.bootloader.extended_fuses=0xFD
 mini.menu.cpu.atmega328.bootloader.file=optiboot/optiboot_atmega328-Mini.hex
 
 mini.menu.cpu.atmega328.build.mcu=atmega328p
@@ -473,7 +473,7 @@ mini.menu.cpu.atmega168.upload.maximum_data_size=1024
 mini.menu.cpu.atmega168.upload.speed=19200
 
 mini.menu.cpu.atmega168.bootloader.high_fuses=0xdd
-mini.menu.cpu.atmega168.bootloader.extended_fuses=0x00
+mini.menu.cpu.atmega168.bootloader.extended_fuses=0xF8
 mini.menu.cpu.atmega168.bootloader.file=atmega/ATmegaBOOT_168_ng.hex
 
 mini.menu.cpu.atmega168.build.mcu=atmega168
@@ -515,7 +515,7 @@ fio.upload.speed=57600
 fio.bootloader.tool=avrdude
 fio.bootloader.low_fuses=0xFF
 fio.bootloader.high_fuses=0xDA
-fio.bootloader.extended_fuses=0x05
+fio.bootloader.extended_fuses=0xFD
 fio.bootloader.file=atmega/ATmegaBOOT_168_atmega328_pro_8MHz.hex
 fio.bootloader.unlock_bits=0x3F
 fio.bootloader.lock_bits=0x0F
@@ -552,7 +552,7 @@ bt.menu.cpu.atmega328.upload.maximum_size=28672
 bt.menu.cpu.atmega328.upload.maximum_data_size=2048
 
 bt.menu.cpu.atmega328.bootloader.high_fuses=0xd8
-bt.menu.cpu.atmega328.bootloader.extended_fuses=0x05
+bt.menu.cpu.atmega328.bootloader.extended_fuses=0xFD
 bt.menu.cpu.atmega328.bootloader.file=bt/ATmegaBOOT_168_atmega328_bt.hex
 
 bt.menu.cpu.atmega328.build.mcu=atmega328p
@@ -564,7 +564,7 @@ bt.menu.cpu.atmega168.upload.maximum_size=14336
 bt.menu.cpu.atmega168.upload.maximum_data_size=1024
 
 bt.menu.cpu.atmega168.bootloader.high_fuses=0xdd
-bt.menu.cpu.atmega168.bootloader.extended_fuses=0x00
+bt.menu.cpu.atmega168.bootloader.extended_fuses=0xF8
 bt.menu.cpu.atmega168.bootloader.file=bt/ATmegaBOOT_168.hex
 
 bt.menu.cpu.atmega168.build.mcu=atmega168
@@ -630,7 +630,7 @@ lilypad.menu.cpu.atmega328.upload.speed=57600
 
 lilypad.menu.cpu.atmega328.bootloader.low_fuses=0xFF
 lilypad.menu.cpu.atmega328.bootloader.high_fuses=0xDA
-lilypad.menu.cpu.atmega328.bootloader.extended_fuses=0x05
+lilypad.menu.cpu.atmega328.bootloader.extended_fuses=0xFD
 lilypad.menu.cpu.atmega328.bootloader.file=atmega/ATmegaBOOT_168_atmega328_pro_8MHz.hex
 
 lilypad.menu.cpu.atmega328.build.mcu=atmega328p
@@ -645,7 +645,7 @@ lilypad.menu.cpu.atmega168.upload.speed=19200
 
 lilypad.menu.cpu.atmega168.bootloader.low_fuses=0xe2
 lilypad.menu.cpu.atmega168.bootloader.high_fuses=0xdd
-lilypad.menu.cpu.atmega168.bootloader.extended_fuses=0x00
+lilypad.menu.cpu.atmega168.bootloader.extended_fuses=0xF8
 lilypad.menu.cpu.atmega168.bootloader.file=lilypad/LilyPadBOOT_168.hex
 
 lilypad.menu.cpu.atmega168.build.mcu=atmega168
@@ -675,7 +675,7 @@ pro.menu.cpu.16MHzatmega328.upload.speed=57600
 
 pro.menu.cpu.16MHzatmega328.bootloader.low_fuses=0xFF
 pro.menu.cpu.16MHzatmega328.bootloader.high_fuses=0xDA
-pro.menu.cpu.16MHzatmega328.bootloader.extended_fuses=0x05
+pro.menu.cpu.16MHzatmega328.bootloader.extended_fuses=0xFD
 pro.menu.cpu.16MHzatmega328.bootloader.file=atmega/ATmegaBOOT_168_atmega328.hex
 
 pro.menu.cpu.16MHzatmega328.build.mcu=atmega328p
@@ -691,7 +691,7 @@ pro.menu.cpu.8MHzatmega328.upload.speed=57600
 
 pro.menu.cpu.8MHzatmega328.bootloader.low_fuses=0xFF
 pro.menu.cpu.8MHzatmega328.bootloader.high_fuses=0xDA
-pro.menu.cpu.8MHzatmega328.bootloader.extended_fuses=0x05
+pro.menu.cpu.8MHzatmega328.bootloader.extended_fuses=0xFD
 pro.menu.cpu.8MHzatmega328.bootloader.file=atmega/ATmegaBOOT_168_atmega328_pro_8MHz.hex
 
 pro.menu.cpu.8MHzatmega328.build.mcu=atmega328p
@@ -707,7 +707,7 @@ pro.menu.cpu.16MHzatmega168.upload.speed=19200
 
 pro.menu.cpu.16MHzatmega168.bootloader.low_fuses=0xff
 pro.menu.cpu.16MHzatmega168.bootloader.high_fuses=0xdd
-pro.menu.cpu.16MHzatmega168.bootloader.extended_fuses=0x00
+pro.menu.cpu.16MHzatmega168.bootloader.extended_fuses=0xF8
 pro.menu.cpu.16MHzatmega168.bootloader.file=atmega/ATmegaBOOT_168_diecimila.hex
 
 pro.menu.cpu.16MHzatmega168.build.mcu=atmega168
@@ -723,7 +723,7 @@ pro.menu.cpu.8MHzatmega168.upload.speed=19200
 
 pro.menu.cpu.8MHzatmega168.bootloader.low_fuses=0xc6
 pro.menu.cpu.8MHzatmega168.bootloader.high_fuses=0xdd
-pro.menu.cpu.8MHzatmega168.bootloader.extended_fuses=0x00
+pro.menu.cpu.8MHzatmega168.bootloader.extended_fuses=0xF8
 pro.menu.cpu.8MHzatmega168.bootloader.file=atmega/ATmegaBOOT_168_pro_8MHz.hex
 
 pro.menu.cpu.8MHzatmega168.build.mcu=atmega168
@@ -756,7 +756,7 @@ atmegang.menu.cpu.atmega168.upload.maximum_data_size=1024
 
 atmegang.menu.cpu.atmega168.bootloader.low_fuses=0xff
 atmegang.menu.cpu.atmega168.bootloader.high_fuses=0xdd
-atmegang.menu.cpu.atmega168.bootloader.extended_fuses=0x00
+atmegang.menu.cpu.atmega168.bootloader.extended_fuses=0xF8
 atmegang.menu.cpu.atmega168.bootloader.file=atmega/ATmegaBOOT_168_ng.hex
 
 atmegang.menu.cpu.atmega168.build.mcu=atmega168