ramips: add support for D-Link DWR-116-A1/2

The DWR-116-A1/2 Wireless Router is based on the MT7620N SoC.

Specification:

  MediaTek MT7620N (580 Mhz)
  32 MB of RAM
  8 MB of FLASH
  802.11bgn radio
  5x 10/100 Mbps Ethernet (1 WAN and 4 LAN)
  2x external, non-detachable antennas
  UART (J1 in A1, JP1 in A2) header on PCB (57600 8n1)
  6x LED (GPIO-controlled), 2x button
  JBOOT bootloader

Known issues:
WAN LED is drived by uartl tx pin. I decide to use this pin as
uartlite tx pin.

Installation:
Apply factory image via http web-gui.

Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>

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

@@ -158,6 +158,7 @@ dir-615-h1)
 	set_wifi_led "rt2800pci-phy0::radio"
 	;;
 dir-620-d1|\
+dlink,dwr-116-a1|\
 mzk-ex300np)
 	set_wifi_led "$boardname:green:wifi"
 	;;

target/linux/ramips/base-files/etc/board.d/02_network

@@ -80,6 +80,7 @@ ramips_setup_interfaces()
 	dir-320-b1|\
 	dir-610-a1|\
 	dir-615-h1|\
+	dlink,dwr-116-a1|\
 	ew1200|\
 	firewrt|\
 	hc5661a|\
@@ -428,6 +429,10 @@ ramips_setup_macs()
 		lan_mac=$(mtd_get_mac_ascii factory lanmac)
 		wan_mac=$(mtd_get_mac_ascii factory wanmac)
 		;;
+	dlink,dwr-116-a1)
+		wan_mac=$(jboot_config_read -m -i $(find_mtd_part "config") -o 0xE000)
+		lan_mac=$(macaddr_add "$wan_mac" 1)
+		;;
 	e1700)
 		wan_mac=$(mtd_get_mac_ascii config WAN_MAC_ADDR)
 		;;