ramips: add sysled and sysupgrade to wr512-3gn

Patch from #10035.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29847 3c298f89-4303-0410-b956-a3cf2f4a3e73

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

@@ -78,6 +78,9 @@ get_status_led() {
 	wl-351)
 		status_led="wl-351:amber:power"
 		;;
+	wr512-3gn)
+		status_led="wr512:green:wps"
+		;;
 	esac
 }
 

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

@@ -30,7 +30,8 @@ platform_check_image() {
 	w502u |\
 	v22rw-2x2 | \
 	wli-tx4-ag300n | \
-	whr-g300n)
+	whr-g300n |\
+	wr512-3gn)
 		[ "$magic" != "2705" ] && {
 			echo "Invalid image type."
 			return 1