Merge pull request #2428 from hathach/samd-improve-usb

improve usb dcd samd51

Author: dhalbert

lib/tinyusb

@@ -233,7 +233,7 @@ SRC_C = \
 	lib/oofatfs/ff.c \
 	lib/oofatfs/option/ccsbcs.c \
 	lib/timeutils/timeutils.c \
-	lib/tinyusb/src/portable/microchip/$(CHIP_FAMILY)/dcd_$(CHIP_FAMILY).c \
+	lib/tinyusb/src/portable/microchip/samd/dcd_samd.c \
 	lib/utils/buffer_helper.c \
 	lib/utils/context_manager_helpers.c \
 	lib/utils/interrupt_char.c \