Added support for BeagleBone Green Gateway

Added support for the BeagleBone Green Gateway from Seeed Studio.

Author: jolesieur

adafruit_platformdetect/constants/boards.py

@@ -7,6 +7,7 @@
 BEAGLEBONE_POCKETBEAGLE = "BEAGLEBONE_POCKETBEAGLE"
 BEAGLEBONE_GREEN = "BEAGLEBONE_GREEN"
 BEAGLEBONE_GREEN_WIRELESS = "BEAGLEBONE_GREEN_WIRELESS"
+BEAGLEBONE_GREEN_GATEWAY = "BEAGLEBONE_GREEN_GATEWAY"
 BEAGLEBONE_BLACK_INDUSTRIAL = "BEAGLEBONE_BLACK_INDUSTRIAL"
 BEAGLEBONE_ENHANCED = "BEAGLEBONE_ENHANCED"
 BEAGLEBONE_USOMIQ = "BEAGLEBONE_USOMIQ"
@@ -208,6 +209,7 @@
     BEAGLEBONE_POCKETBEAGLE,
     BEAGLEBONE_GREEN,
     BEAGLEBONE_GREEN_WIRELESS,
+    BEAGLEBONE_GREEN_GATEWAY,
     BEAGLEBONE_BLACK_INDUSTRIAL,
     BEAGLEBONE_ENHANCED,
     BEAGLEBONE_USOMIQ,
@@ -250,6 +252,7 @@
     BEAGLEBONE_POCKETBEAGLE: (("A2", "A335PBGL00A2"),),
     BEAGLEBONE_GREEN: (("1A", "A335BNLT...."), ("UNKNOWN", "A335BNLTBBG1")),
     BEAGLEBONE_GREEN_WIRELESS: (("W1A", "A335BNLTGW1A"),),
+    BEAGLEBONE_GREEN_GATEWAY: (("GA1", "A335BNLTGG1A"),),
     BEAGLEBONE_BLACK_INDUSTRIAL: (
         ("A0", "A335BNLTAIA0"),  # Arrow
         ("A0", "A335BNLTEIA0"),  # Element14