Replace TOGGLE with CHANGE

Fixes #4
TOGGLE is not part of Arduino APIs so should not be defined at platform level

Author: facchinm

cores/arduino/Arduino.h

@@ -30,9 +30,6 @@
 extern "C"{
 #endif
 
-#define TOGGLE          0x2
-#define PINCTRL_OFFSET  0x10
-
 /* Analog reference options */
 
 /* Change in mega4809: two places to define analog reference

cores/arduino/wiring_digital.c

@@ -164,7 +164,7 @@ void digitalWrite(uint8_t pin, PinStatus val)
 		if (val == LOW) { /* If LOW */
 			port->OUTCLR = bit_mask;
 
-		} else if (val == TOGGLE) { /* If TOGGLE */
+		} else if (val == CHANGE) { /* If TOGGLE */
 			port->OUTTGL = bit_mask;
 									/* If HIGH OR  > TOGGLE  */
 		} else {