projects/imx6/linux: build SPDIF driver as modules

Signed-off-by: Stephan Raue <stephan@openelec.tv>

projects/imx6/linux/linux.arm.conf

@@ -1,6 +1,6 @@
 #
 # Automatically generated file; DO NOT EDIT.
-# Linux/arm 3.14.20 Kernel Configuration
+# Linux/arm 3.14.25 Kernel Configuration
 #
 CONFIG_ARM=y
 CONFIG_MIGHT_HAVE_PCI=y
@@ -2542,23 +2542,23 @@ CONFIG_SND_SOC=y
 CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM=y
 # CONFIG_SND_ATMEL_SOC is not set
 # CONFIG_SND_DESIGNWARE_I2S is not set
-CONFIG_SND_SOC_FSL_SSI=y
-CONFIG_SND_SOC_FSL_SPDIF=y
+CONFIG_SND_SOC_FSL_SSI=m
+CONFIG_SND_SOC_FSL_SPDIF=m
 CONFIG_SND_SOC_FSL_ASRC=y
 CONFIG_SND_SOC_FSL_HDMI=y
 CONFIG_SND_IMX_SOC=y
 CONFIG_SND_SOC_IMX_PCM_DMA=y
 CONFIG_SND_SOC_IMX_HDMI_DMA=y
-CONFIG_SND_SOC_IMX_AUDMUX=y
+CONFIG_SND_SOC_IMX_AUDMUX=m
 # CONFIG_SND_SOC_IMX_CS42888 is not set
 # CONFIG_SND_SOC_IMX_WM8962 is not set
-CONFIG_SND_SOC_IMX_SGTL5000=y
-CONFIG_SND_SOC_IMX_SPDIF=y
+CONFIG_SND_SOC_IMX_SGTL5000=m
+CONFIG_SND_SOC_IMX_SPDIF=m
 CONFIG_SND_SOC_IMX_HDMI=y
 # CONFIG_SND_SOC_IMX_MC13783 is not set
 CONFIG_SND_SOC_I2C_AND_SPI=y
 CONFIG_SND_SOC_HDMI_CODEC=y
-CONFIG_SND_SOC_SGTL5000=y
+CONFIG_SND_SOC_SGTL5000=m
 # CONFIG_SND_SIMPLE_CARD is not set
 # CONFIG_SOUND_PRIME is not set
 CONFIG_AC97_BUS=m