ARM: dts: imx6ul-14x14-evk: Assign power supplies for magnetometer

On i.MX6UL 14x14 EVK board, mag3110's power is controlled by
sensor regulator, assign power supplies for mag3110 driver
to do power management.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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

@@ -193,6 +193,8 @@ &i2c1 {
 	magnetometer@e {
 		compatible = "fsl,mag3110";
 		reg = <0x0e>;
+		vdd-supply = <&reg_sensors>;
+		vddio-supply = <&reg_sensors>;
 	};
 };