ARM: dts: armada-385-linksys: fixup button node names

Buttons don't have a reg property; drop pseudo address and fixup names
of individual button nodes. Also drop #address-cells and #size-cells
properties.
Signed-off-by: NRalph Sennhauser <ralph.sennhauser@gmail.com>
Signed-off-by: NImre Kaloz <kaloz@openwrt.org>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NGregory CLEMENT <gregory.clement@free-electrons.com>

arch/arm/boot/dts/armada-385-linksys.dtsi

@@ -81,18 +81,16 @@
 
 	gpio_keys: gpio-keys {
 		compatible = "gpio-keys";
-		#address-cells = <1>;
-		#size-cells = <0>;
 		pinctrl-0 = <&gpio_keys_pins>;
 		pinctrl-names = "default";
 
-		button@1 {
+		wps {
 			label = "WPS";
 			linux,code = <KEY_WPS_BUTTON>;
 			gpios = <&gpio0 24 GPIO_ACTIVE_LOW>;
 		};
 
-		button@2 {
+		reset {
 			label = "Factory Reset Button";
 			linux,code = <KEY_RESTART>;
 			gpios = <&gpio0 29 GPIO_ACTIVE_LOW>;