ARM: dts: BCM5301X: add missing LEDs for Buffalo WZR-900DHP

Buffalo WZR-900DHP has 8 LEDs, but there is not LED definitions in the
dts and cannot configure these LEDs.
I Added missing LED definitions for WZR-900DHP.
Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
Reviewed-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

arch/arm/boot/dts/bcm47081-buffalo-wzr-900dhp.dts

@@ -35,6 +35,74 @@ memory {
 		       0x88000000 0x08000000>;
 	};
 
+	spi {
+		compatible = "spi-gpio";
+		num-chipselects = <1>;
+		gpio-sck = <&chipcommon 7 0>;
+		gpio-mosi = <&chipcommon 4 0>;
+		cs-gpios = <&chipcommon 6 0>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		hc595: gpio_spi@0 {
+			compatible = "fairchild,74hc595";
+			reg = <0>;
+			registers-number = <1>;
+			spi-max-frequency = <100000>;
+
+			gpio-controller;
+			#gpio-cells = <2>;
+
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		usb {
+			label = "bcm53xx:green:usb";
+			gpios = <&hc595 0 GPIO_ACTIVE_HIGH>;
+		};
+
+		power0 {
+			label = "bcm53xx:green:power";
+			gpios = <&hc595 1 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "default-on";
+		};
+
+		power1 {
+			label = "bcm53xx:red:power";
+			gpios = <&hc595 2 GPIO_ACTIVE_HIGH>;
+		};
+
+		router0 {
+			label = "bcm53xx:green:router";
+			gpios = <&hc595 3 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "default-on";
+		};
+
+		router1 {
+			label = "bcm53xx:amber:router";
+			gpios = <&hc595 4 GPIO_ACTIVE_HIGH>;
+		};
+
+		wan {
+			label = "bcm53xx:green:wan";
+			gpios = <&hc595 5 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "default-on";
+		};
+
+		wireless0 {
+			label = "bcm53xx:green:wireless";
+			gpios = <&hc595 6 GPIO_ACTIVE_HIGH>;
+		};
+
+		wireless1 {
+			label = "bcm53xx:amber:wireless";
+			gpios = <&hc595 7 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";
 		#address-cells = <1>;