ARM: dts: dove: align LED node names with dtschema

The node names should be generic and DT schema expects certain pattern:

dove-cubox.dtb: leds: 'power' does not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'

Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Krzysztof Kozlowski <[e-mail]>

arch/arm/boot/dts/dove-cm-a510.dtsi

···
 		pinctrl-0 = <&pmx_nand_gpo>;
 		pinctrl-names = "default";
 
-		system {
+		led-system {
 			label = "cm-a510:system:green";
 			gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>;
 			default-state = "keep";

arch/arm/boot/dts/dove-cubox.dts

···
 		pinctrl-0 = <&pmx_gpio_18>;
 		pinctrl-names = "default";
 
-		power {
+		led-power {
 			label = "Power";
 			gpios = <&gpio0 18 1>;
 			default-state = "keep";

arch/arm/boot/dts/dove-d2plug.dts

···
 		pinctrl-0 = <&pmx_gpio_0 &pmx_gpio_1 &pmx_gpio_2>;
 		pinctrl-names = "default";
 
-		wlan-ap {
+		led-wlan-ap {
 			label = "wlan-ap";
 			gpios = <&gpio0 0 1>;
 		};
 
-		wlan-act {
+		led-wlan-act {
 			label = "wlan-act";
 			gpios = <&gpio0 1 1>;
 		};
 
-		bluetooth-act {
+		led-bluetooth-act {
 			label = "bt-act";
 			gpios = <&gpio0 2 1>;
 		};

arch/arm/boot/dts/dove-d3plug.dts

···
 		pinctrl-0 = <&pmx_gpio_0 &pmx_gpio_1 &pmx_gpio_2>;
 		pinctrl-names = "default";
 
-		wlan-act {
+		led-wlan-act {
 			label = "wlan-act";
 			gpios = <&gpio0 0 1>;
 		};
 
-		wlan-ap {
+		led-wlan-ap {
 			label = "wlan-ap";
 			gpios = <&gpio0 1 1>;
 		};
 
-		status {
+		led-status {
 			label = "status";
 			gpios = <&gpio0 2 1>;
 		};