ar71xx: WNDR4300: use the switch LED trigger on the WAN port

The WAN port on the Netgear WNDR4300 router has two LEDs,
amber and green. Use the switch LED trigger to behave as the
rest of the LAN HW controlled LEDs
- Green: 1 Gbps
- Amber: 100/10 Mbps

Signed-off-by: Daniel Gonzalez Cabanelas <dgcbueu@gmail.com>

target/linux/ar71xx/base-files/etc/board.d/01_leds

@@ -823,7 +823,8 @@ r6100)
 	;;
 wndr3700v4|\
 wndr4300)
-	ucidef_set_led_netdev "wan" "WAN (green)" "netgear:green:wan" "eth0.2"
+	ucidef_set_led_switch "wan-green" "WAN (green)" "netgear:green:wan" "switch0" "0x20" "0x08"
+	ucidef_set_led_switch "wan-amber" "WAN (amber)" "netgear:amber:wan" "switch0" "0x20" "0x06"
 	ucidef_set_led_usbdev "usb" "USB" "netgear:green:usb" "1-1"
 	ucidef_set_led_wlan "wlan2g" "WLAN2G" "netgear:green:wlan2g" "phy0tpt"
 	ucidef_set_led_wlan "wlan5g" "WLAN5G" "netgear:blue:wlan5g" "phy1tpt"