Added defines to identify MKR layout

Author: cmaglie

boards.txt

@@ -124,7 +124,7 @@ mkr1000.build.usb_product="Arduino MKR1000"
 mkr1000.build.usb_manufacturer="Arduino LLC"
 mkr1000.build.board=SAMD_MKR1000
 mkr1000.build.core=arduino
-mkr1000.build.extra_flags=-D__SAMD21G18A__ {build.usb_flags}
+mkr1000.build.extra_flags=-DUSE_ARDUINO_MKR_PIN_LAYOUT -D__SAMD21G18A__ {build.usb_flags}
 mkr1000.build.ldscript=linker_scripts/gcc/flash_with_bootloader.ld
 mkr1000.build.openocdscript=openocd_scripts/arduino_zero.cfg
 mkr1000.build.variant=mkr1000
@@ -153,7 +153,7 @@ mkrzero.build.usb_product="Arduino MKRZero"
 mkrzero.build.usb_manufacturer="Arduino LLC"
 mkrzero.build.board=SAMD_MKRZERO
 mkrzero.build.core=arduino
-mkrzero.build.extra_flags=-D__SAMD21G18A__ {build.usb_flags}
+mkrzero.build.extra_flags=-DUSE_ARDUINO_MKR_PIN_LAYOUT -D__SAMD21G18A__ {build.usb_flags}
 mkrzero.build.ldscript=linker_scripts/gcc/flash_with_bootloader.ld
 mkrzero.build.openocdscript=openocd_scripts/arduino_zero.cfg
 mkrzero.build.variant=mkrzero
@@ -182,7 +182,7 @@ mkrfox1200.build.usb_product="Arduino MKR FOX 1200"
 mkrfox1200.build.usb_manufacturer="Arduino LLC"
 mkrfox1200.build.board=SAMD_MKRFox1200
 mkrfox1200.build.core=arduino
-mkrfox1200.build.extra_flags=-D__SAMD21G18A__ {build.usb_flags}
+mkrfox1200.build.extra_flags=-DUSE_ARDUINO_MKR_PIN_LAYOUT -D__SAMD21G18A__ {build.usb_flags}
 mkrfox1200.build.ldscript=linker_scripts/gcc/flash_with_bootloader.ld
 mkrfox1200.build.openocdscript=openocd_scripts/arduino_zero.cfg
 mkrfox1200.build.variant=mkrfox1200
@@ -211,7 +211,7 @@ mkrgsm1400.build.usb_product="Arduino MKR GSM 1400"
 mkrgsm1400.build.usb_manufacturer="Arduino LLC"
 mkrgsm1400.build.board=SAMD_MKRGSM1400
 mkrgsm1400.build.core=arduino
-mkrgsm1400.build.extra_flags=-D__SAMD21G18A__ {build.usb_flags} -DUSE_BQ24195L_PMIC
+mkrgsm1400.build.extra_flags=-DUSE_ARDUINO_MKR_PIN_LAYOUT -D__SAMD21G18A__ {build.usb_flags} -DUSE_BQ24195L_PMIC
 mkrgsm1400.build.ldscript=linker_scripts/gcc/flash_with_bootloader.ld
 mkrgsm1400.build.openocdscript=openocd_scripts/arduino_zero.cfg
 mkrgsm1400.build.variant=mkrgsm1400
@@ -240,7 +240,7 @@ mkrwan1300.build.usb_product="Arduino MKR WAN 1300"
 mkrwan1300.build.usb_manufacturer="Arduino LLC"
 mkrwan1300.build.board=SAMD_MKRWAN1300
 mkrwan1300.build.core=arduino
-mkrwan1300.build.extra_flags=-D__SAMD21G18A__ {build.usb_flags}
+mkrwan1300.build.extra_flags=-DUSE_ARDUINO_MKR_PIN_LAYOUT -D__SAMD21G18A__ {build.usb_flags}
 mkrwan1300.build.ldscript=linker_scripts/gcc/flash_with_bootloader.ld
 mkrwan1300.build.openocdscript=openocd_scripts/arduino_zero.cfg
 mkrwan1300.build.variant=mkrwan1300
@@ -269,7 +269,7 @@ mkrwifi1010.build.usb_product="Arduino MKR WiFi 1010"
 mkrwifi1010.build.usb_manufacturer="Arduino LLC"
 mkrwifi1010.build.board=SAMD_MKRWIFI1010
 mkrwifi1010.build.core=arduino
-mkrwifi1010.build.extra_flags=-D__SAMD21G18A__ {build.usb_flags} -DUSE_BQ24195L_PMIC
+mkrwifi1010.build.extra_flags=-DUSE_ARDUINO_MKR_PIN_LAYOUT -D__SAMD21G18A__ {build.usb_flags} -DUSE_BQ24195L_PMIC
 mkrwifi1010.build.ldscript=linker_scripts/gcc/flash_with_bootloader.ld
 mkrwifi1010.build.openocdscript=openocd_scripts/arduino_zero.cfg
 mkrwifi1010.build.variant=mkrwifi1010