arm64: dts: imx8-apalis: Disable the audmix

The audmix is not used on apalis imx8, disable it.

This solves the following warning message

  imx-audmix imx-audmix.0: failed to find SAI platform device
  imx-audmix imx-audmix.0: probe with driver imx-audmix failed with error -22

Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>

arch/arm64/boot/dts/freescale/imx8-apalis-eval.dtsi

@@ -22,10 +22,6 @@ &adc1 {
 	status = "okay";
 };
 
-&amix {
-	status = "okay";
-};
-
 &asrc0 {
 	status = "okay";
 };

arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.1.dtsi

@@ -62,10 +62,6 @@ &adc1 {
 	status = "okay";
 };
 
-&amix {
-	status = "okay";
-};
-
 &asrc0 {
 	status = "okay";
 };

arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.2.dtsi

@@ -94,10 +94,6 @@ &adc1 {
 	status = "okay";
 };
 
-&amix {
-	status = "okay";
-};
-
 &asrc0 {
 	status = "okay";
 };