ramips: add support for Planex VR500.

SOC:	MT7621A
RAM:	256MiB
NOR:	MX25L51245G

Non Wireless Router.

Issue: soft reboot problem. SPI Flash do not exit 4byte address mode.

Signed-off-by: Yuhei Okawa <tochiro.srchack@gmail.com>

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

@@ -146,7 +146,8 @@ mzk-ex300np)
 	;;
 dir-810l|\
 mzk-750dhp|\
-mzk-dp150n)
+mzk-dp150n|\
+vr500)
 	ucidef_set_led_default "power" "power" "$board:green:power" "1"
 	;;
 dir-860l-b1)

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

@@ -85,6 +85,7 @@ ramips_setup_interfaces()
 	psg1218|\
 	sap-g3200u3|\
 	sk-wb8|\
+	vr500|\
 	wf-2881|\
 	whr-300hp2|\
 	whr-600d|\
@@ -354,6 +355,10 @@ ramips_setup_macs()
 		lan_mac=$(mtd_get_mac_ascii u-boot-env LAN_MAC_ADDR)
 		wan_mac=$(mtd_get_mac_ascii u-boot-env WAN_MAC_ADDR)
 		;;
+	vr500)
+		lan_mac=$(mtd_get_mac_binary factory 57344)
+		wan_mac=$(mtd_get_mac_binary factory 57350)
+		;;
 	w306r-v20)
 		lan_mac=$(cat /sys/class/net/eth0/address)
 		wan_mac=$(macaddr_add "$lan_mac" 5)

target/linux/ramips/base-files/etc/diag.sh

@@ -29,6 +29,7 @@ get_status_led() {
 	nbg-419n|\
 	nbg-419n2|\
 	pwh2004|\
+	vr500|\
 	wnce2001|\
 	wndr3700v5|\
 	x5|\