ramips: rt305x: add support for Accton WR6202 / SMCWBR11S-3GN

This patch adds support for the Accton WR6202 Mini 3G broadband router.
Full details for this device are available at
http://www.awbnetworks.com/products03.php?Fullkey=19.

This device is identical to the SMCWBR11S-3GN:
http://www.smc-asia.com/products03.php?Fullkey=210

It's also worth noting that this board has a GPIO line to control the
power to the USB port.

[juhosg:
 - fix checkpatch warnings,
 - reorder Kconfig entry,
 - merge the sysupgrade patch,
 - add GPL header]

Signed-off-by: Johnathan Boyce <jon.boyce@globalreach.eu.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@30434 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/ramips/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom

@@ -64,7 +64,8 @@ case "$FIRMWARE" in
 	whr-g300n | \
 	wl-351 | \
 	wli-tx4-ag300n | \
-	wr512-3gn)
+	wr512-3gn | \
+	wr6202)
 		rt2x00_eeprom_extract "factory" 0 272
 		;;
 

target/linux/ramips/base-files/etc/uci-defaults/network

@@ -23,7 +23,8 @@ ramips_setup_interfaces()
 	argus-atp52b | \
 	b2c | \
 	nw718 | \
-	w502u)
+	w502u | \
+	wr6202)
 		ucidef_set_interfaces_lan_wan "eth0.1" "eth0.2"
 		;;
 

target/linux/ramips/base-files/lib/preinit/06_set_iface_mac

@@ -25,7 +25,8 @@ preinit_set_mac_address() {
 	hw550-3g |\
 	nbg-419n |\
 	omni-emb |\
-	w502u)
+	w502u    |\
+	wr6202)
 		mac=$(ramips_get_mac_binary factory 40)
 		ifconfig eth0 hw ether $mac 2>/dev/null
 		;;

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

@@ -128,6 +128,9 @@ ramips_board_name() {
 	*"WR512-3GN-like router")
 		name="wr512-3gn"
 		;;
+	*"AWB WR6202")
+		name="wr6202"
+		;;
 	*)
 		name="generic"
 		;;

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

@@ -29,6 +29,7 @@ platform_check_image() {
 	rt-g32-b1 | \
 	rt-n15 | \
 	w502u |\
+	wr6202 |\
 	v22rw-2x2 | \
 	wl341v3 | \
 	wli-tx4-ag300n | \