ARM: dts: sun6i: hummingbird: Drop AXP221 DC1SW and DC5LDO supplies

"dcdc1-supply" and "dcdc5-supply" have been dropped, as they are
internally connected and should not be represented in the device
tree.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/boot/dts/sun6i-a31-hummingbird.dts

@@ -180,8 +180,6 @@ axp221: pmic@68 {
 		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
 		interrupt-controller;
 		#interrupt-cells = <1>;
-		dcdc1-supply = <&vcc_3v0>;
-		dcdc5-supply = <&vcc_dram>;
 
 		regulators {
 			x-powers,dcdc-freq = <3000>;