Reenabling busdevice in core

Author: gamblor21

py/circuitpy_mpconfig.mk

@@ -100,7 +100,7 @@ CFLAGS += -DCIRCUITPY_BLEIO=$(CIRCUITPY_BLEIO)
 CIRCUITPY_BOARD ?= 1
 CFLAGS += -DCIRCUITPY_BOARD=$(CIRCUITPY_BOARD)
 
-CIRCUITPY_BUSDEVICE = 0
+CIRCUITPY_BUSDEVICE ?= $(CIRCUITPY_FULL_BUILD)
 CFLAGS += -DCIRCUITPY_BUSDEVICE=$(CIRCUITPY_BUSDEVICE)
 
 CIRCUITPY_BUILTINS_POW3 ?= $(CIRCUITPY_FULL_BUILD)