Add power supply, #sound-dai-cells and clock  nodes for fsl,sgtl5000 to
fix below CHECK_DTB warnings:

arch/arm/boot/dts/nxp/imx/imx53-smd.dtb: sgtl5000@a (fsl,sgtl5000): '#sound-dai-cells' is a required property
        from schema $id: http://devicetree.org/schemas/sound/fsl,sgtl5000.yaml#
arch/arm/boot/dts/nxp/imx/imx53-smd.dtb: sgtl5000@a (fsl,sgtl5000): 'clocks' is a required property
        from schema $id: http://devicetree.org/schemas/sound/fsl,sgtl5000.yaml#
arch/arm/boot/dts/nxp/imx/imx53-smd.dtb: sgtl5000@a (fsl,sgtl5000): 'VDDA-supply' is a required property
        from schema $id: http://devicetree.org/schemas/sound/fsl,sgtl5000.yaml#
arch/arm/boot/dts/nxp/imx/imx53-smd.dtb: sgtl5000@a (fsl,sgtl5000): 'VDDIO-supply' is a required property

Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
 arch/arm/boot/dts/nxp/imx/imx53-smd.dts | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/boot/dts/nxp/imx/imx53-smd.dts b/arch/arm/boot/dts/nxp/imx/imx53-smd.dts
index 386371c816f4d1f2566661e5dd7d02c498ed269b..a1e19f9709b2c7c7d02812f2b5c2afd382fb5d86 100644
--- a/arch/arm/boot/dts/nxp/imx/imx53-smd.dts
+++ b/arch/arm/boot/dts/nxp/imx/imx53-smd.dts
@@ -31,6 +31,20 @@ key-volume-down {
 			linux,code = <KEY_VOLUMEDOWN>;
 		};
 	};
+
+	reg_1v8: regulator-1v8 {
+		compatible = "regulator-fixed";
+		regulator-name = "1v8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
+	reg_3v3: regulator-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
 };
 
 &esdhc1 {
@@ -253,6 +267,10 @@ &i2c2 {
 	codec: sgtl5000@a {
 		compatible = "fsl,sgtl5000";
 		reg = <0x0a>;
+		#sound-dai-cells = <0>;
+		clocks = <&clks IMX5_CLK_DUMMY>;
+		VDDA-supply = <&reg_1v8>;
+		VDDIO-supply = <&reg_3v3>;
 	};
 
 	magnetometer: mag3110@e {

-- 
2.34.1