ARM: dts: axp81x: add AC power supply subnode

Add AC power supply subnode for AXP81X PMIC.
Signed-off-by: Oskari Lemmela <oskari@lemmela.net>
Reviewed-by: Quentin Schulz <quentin.schulz@bootlin.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Tested-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>

arch/arm/boot/dts/axp81x.dtsi

@@ -48,6 +48,11 @@ &axp81x {
 	interrupt-controller;
 	#interrupt-cells = <1>;
 
+	ac_power_supply: ac-power-supply {
+		compatible = "x-powers,axp813-ac-power-supply";
+		status = "disabled";
+	};
+
 	axp_adc: adc {
 		compatible = "x-powers,axp813-adc";
 		#io-channel-cells = <1>;