Add missing Raspberry Pi 2 Rev code

Author: makermelissa

adafruit_platformdetect/constants/boards.py

@@ -283,18 +283,22 @@
     RASPBERRY_PI_2B: (
         "a01040",
         "a01041",
+        "a02042",
         "a21041",
         "a22042",
         "1a01040",
         "1a01041",
+        "1a02042",
         "1a21041",
         "1a22042",  # warranty bit 24
         "2a01040",
         "2a01041",
+        "2a02042",
         "2a21041",
         "2a22042",  # warranty bit 25
         "3a01040",
         "3a01041",
+        "3a02042",
         "3a21041",
         "3a22042",
     ),