Update avr core to 1.8.3 and toolchain to 7.3.0-atmel3.6.1-arduino7

Author: facchinm

build/avr-1.8.2.tar.bz2.sha

@@ -101,9 +101,9 @@
 
   <property name="ARDUINO-BUILDER-VERSION" value="1.5.3" />
   <property name="LIBLISTSERIAL-VERSION" value="1.4.2-2" />
-  <property name="AVRGCC-VERSION" value="7.3.0-atmel3.6.1-arduino5" />
+  <property name="AVRGCC-VERSION" value="7.3.0-atmel3.6.1-arduino7" />
   <property name="AVRDUDE-VERSION" value="6.3.0-arduino17" />
-  <property name="AVRCORE-VERSION" value="1.8.2" />
+  <property name="AVRCORE-VERSION" value="1.8.3" />
   <property name="arduinoOTA-VERSION" value="1.3.0" />
 
   <!-- Libraries required for running arduino -->

build/build.xml

@@ -0,0 +1 @@
+c2a89314b9f0ae39e4631bc87da8c2f273f68ea8

build/linux/avr-gcc-7.3.0-atmel3.6.1-arduino5-aarch64-pc-linux-gnu.tar.bz2.sha

@@ -0,0 +1 @@
+db4182045e69706b342f1f4c53089449ba2e0f38

build/linux/avr-gcc-7.3.0-atmel3.6.1-arduino5-arm-linux-gnueabihf.tar.bz2.sha

@@ -0,0 +1 @@
+08c2075b1dfcb68fbc470447f77eda4848d407c7

build/linux/avr-gcc-7.3.0-atmel3.6.1-arduino5-i686-pc-linux-gnu.tar.bz2.sha

@@ -0,0 +1 @@
+fa9a195dca8cc8cbcddbfa13b1bea8f4df5f27d6