adds teensy 3.5 and teensy 3.6 chips

adds teensy 3.5 and teensy 3.6 chips
__MK66FX1M0__ 
__MK64FX512__

Author: neroroxxx

src/utility/hal_platform.h

@@ -27,7 +27,7 @@
 */
 
 //Board dependent defines
-#if defined (__AVR__) || defined(__SAM3X8E__) || defined(__SAMD21G18A__) || defined(__MK20DX128__) || defined(__MK20DX256__) || defined(__MKL26Z64__)
+#if defined (__AVR__) || defined(__SAM3X8E__) || defined(__SAMD21G18A__) || defined(__MK20DX128__) || defined(__MK20DX256__) || defined(__MKL26Z64__) || defined(__MK64FX512__) || defined(__MK66FX1M0__)
     //For Arduino this AVR specific library has to be used for reading from Flash memory
     #include <avr/pgmspace.h>
     #include "Arduino.h"