ASoC: imx-mc13783: Depend on ARCH_ARM

The driver uses the machine type macros so depends on ARM.
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/fsl/Kconfig

@@ -194,7 +194,7 @@ config SND_SOC_IMX_SGTL5000
 
 config SND_SOC_IMX_MC13783
 	tristate "SoC Audio support for I.MX boards with mc13783"
-	depends on MFD_MC13783
+	depends on MFD_MC13783 && ARCH_ARM
 	select SND_SOC_IMX_SSI
 	select SND_SOC_IMX_AUDMUX
 	select SND_SOC_MC13783