arm64: dts: tqma8mpql: fix audio codec iov-supply

IOVDD is supplied by 1.8V, fix the referenced regulator.

Fixes: d8f9d812 ("arm64: dts: imx8mp: Add analog audio output on i.MX8MP TQMa8MPxL/MBa8MPxL")
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mpxl.dts

@@ -184,6 +184,13 @@ reg_vcc_12v0: regulator-12v0 {
 		enable-active-high;
 	};
 
+	reg_vcc_1v8: regulator-1v8 {
+		compatible = "regulator-fixed";
+		regulator-name = "VCC_1V8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
 	reg_vcc_3v3: regulator-3v3 {
 		compatible = "regulator-fixed";
 		regulator-name = "VCC_3V3";
@@ -480,7 +487,7 @@ tlv320aic3x04: audio-codec@18 {
 		clock-names = "mclk";
 		clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SAI3_MCLK1>;
 		reset-gpios = <&gpio4 29 GPIO_ACTIVE_LOW>;
-		iov-supply = <&reg_vcc_3v3>;
+		iov-supply = <&reg_vcc_1v8>;
 		ldoin-supply = <&reg_vcc_3v3>;
 	};