ARM: dts: BCM5301X: Add missing Netgear R8000 LEDs and Keys

Added two WAN status LEDs and a GPIO key for brightness which were
missing.
Signed-off-by: Aditya Xavier <adityaxavier@gmail.com>
Acked-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

arch/arm/boot/dts/bcm4709-netgear-r8000.dts

@@ -38,18 +38,30 @@ memory {
 	leds {
 		compatible = "gpio-leds";
 
-		power0 {
+		power-white {
 			label = "bcm53xx:white:power";
 			gpios = <&chipcommon 2 GPIO_ACTIVE_LOW>;
 			linux,default-trigger = "default-on";
 		};
 
-		power1 {
+		power-amber {
 			label = "bcm53xx:amber:power";
 			gpios = <&chipcommon 3 GPIO_ACTIVE_LOW>;
 			linux,default-trigger = "default-off";
 		};
 
+		wan-white {
+			label = "bcm53xx:white:wan";
+			gpios = <&chipcommon 8 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "default-on";
+		};
+
+		wan-amber {
+			label = "bcm53xx:amber:wan";
+			gpios = <&chipcommon 9 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "default-off";
+		};
+
 		5ghz-1 {
 			label = "bcm53xx:white:5ghz-1";
 			gpios = <&chipcommon 12 GPIO_ACTIVE_LOW>;
@@ -115,6 +127,12 @@ restart {
 			linux,code = <KEY_RESTART>;
 			gpios = <&chipcommon 6 GPIO_ACTIVE_LOW>;
 		};
+
+		brightness {
+			label = "Backlight";
+			linux,code = <KEY_BRIGHTNESS_ZERO>;
+			gpios = <&chipcommon 19 GPIO_ACTIVE_LOW>;
+		};
 	};
 };