ramips: added led support for wrtnode board

This syncs the dts file with the one provided by the wrtnode team:
https://github.com/WRTnode/openwrt-patches/blob/master/R41508/wrtnode_factory_firmware_dts.patch

Signed-off-by: Christian Mehlis <christian@m3hlis.de>

SVN-Revision: 46350

target/linux/ramips/dts/WRTNODE.dts

@@ -7,6 +7,10 @@
 	model = "WRTNODE";
 
 	palmbus@10000000 {
+		gpio1: gpio@638 {
+			status = "okay";
+		};
+
 		gpio2: gpio@660 {
 			status = "okay";
 		};
@@ -77,4 +81,12 @@
 			};
 		};
 	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+		indicator {
+			label = "wrtnode:blue:indicator";
+			gpios = <&gpio1 14 1>;
+		};
+	};
 };