ARM: dts: imx6ul-14x14-evk: Remove unnecessary node

imx6ul.dtsi already contains:

cpu0: cpu@0 {
	....
	arm-supply = <&reg_arm>;
	soc-supply = <&reg_soc>;
};

, so remove the duplication.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6ul-14x14-evk.dts

@@ -85,11 +85,6 @@ &clks {
 	assigned-clock-rates = <786432000>;
 };
 
-&cpu0 {
-	arm-supply = <&reg_arm>;
-	soc-supply = <&reg_soc>;
-};
-
 &i2c2 {
 	clock_frequency = <100000>;
 	pinctrl-names = "default";