wishbone-serial: add symlink for dev/ttyUSBn devices

pcie-wb/99-usb-wb-serial.rules

+ACTION=="add", SUBSYSTEM=="tty", ENV{ID_BUS}=="usb", KERNEL=="ttyUSB*", ATTRS{idVendor}=="1d50", ATTRS{idProduct}=="6062", SYMLINK+="wbmUSB%n"

pcie-wb/Makefile

@@ -25,6 +25,7 @@ install:
 	$(MAKE) -C $(KERNELDIR) M=$(PWD) INSTALL_MOD_PATH=$(STAGING) modules_install
 	mkdir -p $(STAGING)/etc/udev/rules.d
 	cp 95-pcie-wb.rules $(STAGING)/etc/udev/rules.d
+	cp 99-usb-wb-serial.rules $(STAGING)/etc/udev/rules.d
 	[ $$(id -u) -ne 0 ] || depmod -a $(KERNELVER)
 	[ $$(id -u) -ne 0 ] || groupadd wishbone || true