Add MKRFox support to SDU (and rebuild for all boards)

libraries/SDU/extras/SDUBoot/build.sh

@@ -24,3 +24,4 @@ mkdir -p "$OUTPUT_PATH"
 buildSDUBootSketch "arduino:samd:arduino_zero_edbg" "$OUTPUT_PATH/zero.h"
 buildSDUBootSketch "arduino:samd:mkr1000" "$OUTPUT_PATH/mkr1000.h"
 buildSDUBootSketch "arduino:samd:mkrzero" "$OUTPUT_PATH/mkrzero.h"
+buildSDUBootSketch "arduino:samd:mkrfox1200" "$OUTPUT_PATH/mkrfox1200.h"

libraries/SDU/src/SDU.cpp

@@ -28,6 +28,8 @@ unsigned char sduBoot[0x4000] = {
   #include "boot/mkr1000.h"
 #elif defined(ARDUINO_SAMD_MKRZERO)
   #include "boot/mkrzero.h"
+#elif defined(ARDUINO_SAMD_MKRFox1200)
+  #include "boot/mkrfox1200.h"
 #else
   #error "Unsupported board!"
 #endif