fix ports path arg to fetch-submodules.sh

Author: dhalbert

py/circuitpy_defns.mk

@@ -833,7 +833,8 @@ $(BUILD)/lib/libm/kf_rem_pio2.o: CFLAGS += -Wno-maybe-uninitialized
 # Fetch only submodules needed for this particular port.
 .PHONY: fetch-port-submodules
 fetch-port-submodules:
-	$(TOP)/tools/fetch-submodules.sh data extmod frozen lib $(CURDIR)
+	echo $(basename $(CURDIR))
+	$(TOP)/tools/fetch-submodules.sh data extmod frozen lib ports/$(shell basename $(CURDIR))
 
 .PHONY: invalid-board
 invalid-board: