ramips: enable LED VCC for Asus RT-AC51U

Previously only the power LED was working.
With this patch all leds except 5GHz are working.

Signed-off-by: Davide Fioravanti <pantanastyle@gmail.com>
[rephrased commit title, drop status property]
Signed-off-by: David Bauer <mail@david-bauer.net>
(cherry picked from commit 67d019ac94015707926235a3ac0aa6bb12cee8c2)

target/linux/ramips/dts/RT-AC51U.dts

@@ -53,17 +53,6 @@
 			linux,code = <KEY_WPS_BUTTON>;
 		};
 	};
-
-	gpio_export {
-		compatible = "gpio-export";
-		#size-cells = <0>;
-
-		enable-leds {
-			gpio-export,name = "enable-leds";
-			gpio-export,output = <1>;
-			gpios = <&gpio0 10 GPIO_ACTIVE_HIGH>;
-		};
-	};
 };
 
 &spi0 {
@@ -114,6 +103,15 @@
 	status = "okay";
 };
 
+&gpio0 {
+	enable-leds {
+		gpio-hog;
+		line-name = "enable-leds";
+		output-low;
+		gpios = <10 GPIO_ACTIVE_HIGH>;
+	};
+};
+
 &gpio3 {
 	status = "okay";
 };