ARM: dts: sun7i: Enable power supplies on A20-OLinuxIno-Micro

The axp209.dtsi defines nodes for ac, usb and battery supplies for a
while now. This patch enables these nodes for the A20-Olinuxino-Micro,
which has connectors for all three of them.

The patch was run-tested against linux-next-20170825.
Signed-off-by: Harald Geyer <harald@ccbib.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts

@@ -256,6 +256,14 @@ usb0_vbus_detect_pin: usb0_vbus_detect_pin@0 {
 
 #include "axp209.dtsi"
 
+&ac_power_supply {
+	status = "okay";
+};
+
+&battery_power_supply {
+	status = "okay";
+};
+
 &reg_dcdc2 {
 	regulator-always-on;
 	regulator-min-microvolt = <1000000>;
@@ -330,6 +338,10 @@ &usb_otg {
 	status = "okay";
 };
 
+&usb_power_supply {
+	status = "okay";
+};
+
 &usbphy {
 	pinctrl-names = "default";
 	pinctrl-0 = <&usb0_id_detect_pin>, <&usb0_vbus_detect_pin>;