ramips: add support for D-Link DRA-1360

The DRA-1360 rev A is a wall-plug AC1300 repeater.
Hardware is identical (same FCC ID, black case instead of white)
to D-Link DAP-1620 rev B, which is already supported, but a
different model name, revision, and hardware ID are needed.
Thus, the bulk of the DAP-1620 device tree is extracted to a
common dtsi included by the two models' device trees.

Repeating specs and installation instructions from e4c7703:
(note that the RAM size mentioned there was incorrect, oops)

Specs:
- SoC: MT7621AT (880MHz dual-core MIPS1004Kc)
- Memory: 128 MiB RAM, 16 MiB NOR SPI
- WiFi: MT7615DN 2x2 802.11n + 2x2 802.11ac (DBDC)
- Ethernet: 1 RJ45 port 10/100/1000
- Power/status LED: red+green
- LED RSSI bargraph: 2x green, 1x red+green

Installation:
- Keep reset button pressed during plug-in
- Web Recovery Updater is at 192.168.0.50
  (pings are ignored, it listens only for http)
- Upload factory.bin, confirm flashing
  (seems to work best with Chromium-based browsers)

Revert to OEM firmware:
- tail -c+117 DRA1360A1_FW112B03.bin | \
  openssl aes-256-cbc -d -md md5 -out decrypted.bin \
  -k c471706398cb147c6619f8a04a18d53e9c17ede8
- flash decrypted.bin via D-Link Web Recovery

Signed-off-by: Rani Hod <rani.hod@gmail.com>

target/linux/ramips/mt7621/base-files/etc/board.d/01_leds

@@ -69,7 +69,8 @@ jcg,y2|\
 xzwifi,creativebox-v1)
 	ucidef_set_led_netdev "internet" "internet" "blue:internet" "wan"
 	;;
-dlink,dap-1620-b1)
+dlink,dap-1620-b1|\
+dlink,dra-1360-a1)
 	ucidef_set_rssimon "wlan1" "200000" "1"
 	ucidef_set_led_rssi "rssilow" "RSSILOW" "red:rssilow" "wlan1" "1" "40"
 	ucidef_set_led_rssi "rssimediumlow" "RSSIMEDIUMLOW" "green:rssilow" "wlan1" "21" "100"

target/linux/ramips/mt7621/base-files/etc/board.d/02_network

@@ -16,6 +16,7 @@ ramips_setup_interfaces()
 	asus,rp-ac87|\
 	dlink,dap-1620-b1|\
 	dlink,dap-x1860-a1|\
+	dlink,dra-1360-a1|\
 	edimax,re23s|\
 	linksys,re7000|\
 	mikrotik,ltap-2hnd|\

target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac

@@ -38,7 +38,8 @@ case "$board" in
 		macaddr_setbit_la "$(macaddr_add $hw_mac_addr 0x100000)" > /sys${DEVPATH}/macaddress
 		;;
 	dlink,dap-1620-b1|\
-	dlink,dir-853-a1)
+	dlink,dir-853-a1|\
+	dlink,dra-1360-a1)
 		lan_mac_addr="$(mtd_get_mac_binary factory 0xe000)"
 		[ "$PHYNBR" = "0" ] && \
 			macaddr_add $lan_mac_addr 1 > /sys${DEVPATH}/macaddress