ramips: add support for Netgear R6260 and R6850

As Netgear uses the same image for R6260, R6350 & R6850
we can merge device tree files and generate separate
images for each device.

Signed-off-by: Christoph Krapp <achterin@googlemail.com>
[add missing WiFi compatible string, fix network
configuration]
Signed-off-by: David Bauer <mail@david-bauer.net>

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

@@ -293,7 +293,9 @@ netgear,r6120)
 	ucidef_set_led_wlan "wlan2g" "WiFi 2.4GHz" "$boardname:green:wlan2g" "phy0tpt"
 	;;
 netgear,r6220|\
+netgear,r6260|\
 netgear,r6350|\
+netgear,r6850|\
 netgear,wndr3700-v5)
 	ucidef_set_led_switch "wan" "wan" "$boardname:green:wan" "switch0" "0x10"
 	;;

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

@@ -395,7 +395,9 @@ ramips_setup_interfaces()
 		;;
 	netgear,r6120|\
 	netgear,r6220|\
+	netgear,r6260|\
 	netgear,r6350|\
+	netgear,r6850|\
 	netgear,wndr3700-v5)
 		ucidef_add_switch "switch0" \
 			"0:lan:4" "1:lan:3" "2:lan:2" "3:lan:1" "4:wan" "6@eth0"
@@ -593,7 +595,9 @@ ramips_setup_macs()
 		wan_mac=$(mtd_get_mac_binary devdata 0x7)
 		;;
 	edimax,br-6478ac-v2|\
-	netgear,r6350)
+	netgear,r6260|\
+	netgear,r6350|\
+	netgear,r6850)
 		wan_mac=$(macaddr_add "$(cat /sys/class/net/eth0/address)" 2)
 		;;
 	elecom,wrc-1167ghbk2-s|\

target/linux/ramips/base-files/lib/upgrade/platform.sh

@@ -23,7 +23,9 @@ platform_do_upgrade() {
 	case "$board" in
 	hiwifi,hc5962|\
 	netgear,r6220|\
+	netgear,r6260|\
 	netgear,r6350|\
+	netgear,r6850|\
 	xiaomi,mir3g|\
 	xiaomi,mir3p)
 		nand_do_upgrade "$1"