mediatek: add support for Newland NL-WR9103

Hardware specification:
SoC: MediaTek MT7981B 2x A53
Flash: GSTO GSS01GSAK1 128MB (No machine tests yet)
       WINBOND W25N01GVZE1G 128MB
RAM: DDR3 256MB
Ethernet: 4x 10/100/1000 Mbps
Switch: MediaTek MT7531AE
WiFi: MediaTek MT7976C
Button: Reset, Mesh
Power: DC 12V 1A

package/boot/uboot-envtools/files/mediatek

@@ -22,6 +22,7 @@ jdcloud,re-cp-03)
 *360,t7* |\
 ruijie,rg-x30e* |\
 *newland,nl-wr8103* |\
+newland,nl-wr9103 |\
 livinet,zr-3020*)
 	ubootenv_add_uci_config "/dev/mtd2" "0x0" "0x20000" "0x20000" "1"
 	;;

package/mtk/applications/mtk-smp/files/smp.sh

@@ -760,6 +760,7 @@ setup_model()
 	konka,komi-a31 |\
 	*nokia,ea0326gmp* |\
 	newland,nl-wr8103 |\
+	newland,nl-wr9103 |\
 	nradio,wt9103 |\
 	ruijie,rg-x30e* |\
 	*7981*)