arm64: dts: rockchip: fix cpu-supply for rk3328-evb

The property cpu-supply should be added to each cpu separately,
so fix that for rk3328-evb.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20200813181711.15906-1-jbx6244@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3328-evb.dts

@@ -70,6 +70,18 @@
 	cpu-supply = <&vdd_arm>;
 };
 
+&cpu1 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&cpu2 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&cpu3 {
+	cpu-supply = <&vdd_arm>;
+};
+
 &emmc {
 	bus-width = <8>;
 	cap-mmc-highspeed;