ramips: minew g1-c: add the old device name to the supported devices

Allow to use the sysupgrade image as factory image without
additional force.

Signed-off-by: Alexander Couzens <[email protected]>

target/linux/ramips/image/mt76x8.mk

@@ -274,6 +274,7 @@ define Device/minew_g1-c
   DEVICE_VENDOR := Minew
   DEVICE_MODEL := G1-C
   DEVICE_PACKAGES := kmod-usb2 kmod-usb-ohci kmod-usb-ledtrig-usbport kmod-usb-serial-cp210x
+  SUPPORTED_DEVICES += minew-g1c
 endef
 TARGET_DEVICES += minew_g1-c