ASoC: atmel: Improve machine driver compile test coverage

The Atmel ASoC machine drivers don't have any compile time arch dependencies
anymore. Make it possible to select them when COMPILE_TEST is enabled to get
better compile test coverage.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/atmel/Kconfig

@@ -25,7 +25,8 @@ config SND_ATMEL_SOC_SSC
 
 config SND_AT91_SOC_SAM9G20_WM8731
 	tristate "SoC Audio support for WM8731-based At91sam9g20 evaluation board"
-	depends on ARCH_AT91 && ATMEL_SSC && SND_ATMEL_SOC && SND_SOC_I2C_AND_SPI
+	depends on ARCH_AT91 || COMPILE_TEST
+	depends on ATMEL_SSC && SND_ATMEL_SOC && SND_SOC_I2C_AND_SPI
 	select SND_ATMEL_SOC_PDC
 	select SND_ATMEL_SOC_SSC
 	select SND_SOC_WM8731
@@ -35,7 +36,8 @@ config SND_AT91_SOC_SAM9G20_WM8731
 
 config SND_ATMEL_SOC_WM8904
 	tristate "Atmel ASoC driver for boards using WM8904 codec"
-	depends on ARCH_AT91 && ATMEL_SSC && SND_ATMEL_SOC && I2C
+	depends on ARCH_AT91 || COMPILE_TEST
+	depends on ATMEL_SSC && SND_ATMEL_SOC && I2C
 	select SND_ATMEL_SOC_SSC
 	select SND_ATMEL_SOC_DMA
 	select SND_SOC_WM8904
@@ -45,7 +47,8 @@ config SND_ATMEL_SOC_WM8904
 
 config SND_AT91_SOC_SAM9X5_WM8731
 	tristate "SoC Audio support for WM8731-based at91sam9x5 board"
-	depends on ARCH_AT91 && ATMEL_SSC && SND_ATMEL_SOC && SND_SOC_I2C_AND_SPI
+	depends on ARCH_AT91 || COMPILE_TEST
+	depends on ATMEL_SSC && SND_ATMEL_SOC && SND_SOC_I2C_AND_SPI
 	select SND_ATMEL_SOC_SSC
 	select SND_ATMEL_SOC_DMA
 	select SND_SOC_WM8731