ASoC: atmel: simplify Kconfig

Enclose the options in if SND_ATMEL_SOC ... endif to remove the dependency.
Also remove the useless description for SND_ATMEL_SOC_SSC.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/atmel/Kconfig

@@ -6,27 +6,22 @@ config SND_ATMEL_SOC
 	  the ATMEL SSC interface. You will also need
 	  to select the audio interfaces to support below.
 
+if SND_ATMEL_SOC
+
 config SND_ATMEL_SOC_PDC
 	tristate
-	depends on SND_ATMEL_SOC
 
 config SND_ATMEL_SOC_DMA
 	tristate
-	depends on SND_ATMEL_SOC
 	select SND_SOC_GENERIC_DMAENGINE_PCM
 
 config SND_ATMEL_SOC_SSC
 	tristate
-	depends on SND_ATMEL_SOC
-	help
-	  Say Y or M if you want to add support for codecs the
-	  ATMEL SSC interface. You will also needs to select the individual
-	  machine drivers to support below.
 
 config SND_AT91_SOC_SAM9G20_WM8731
 	tristate "SoC Audio support for WM8731-based At91sam9g20 evaluation board"
 	depends on ARCH_AT91 || COMPILE_TEST
-	depends on ATMEL_SSC && SND_ATMEL_SOC && SND_SOC_I2C_AND_SPI
+	depends on ATMEL_SSC && SND_SOC_I2C_AND_SPI
 	select SND_ATMEL_SOC_PDC
 	select SND_ATMEL_SOC_SSC
 	select SND_SOC_WM8731
@@ -37,7 +32,7 @@ config SND_AT91_SOC_SAM9G20_WM8731
 config SND_ATMEL_SOC_WM8904
 	tristate "Atmel ASoC driver for boards using WM8904 codec"
 	depends on ARCH_AT91 || COMPILE_TEST
-	depends on ATMEL_SSC && SND_ATMEL_SOC && I2C
+	depends on ATMEL_SSC && I2C
 	select SND_ATMEL_SOC_SSC
 	select SND_ATMEL_SOC_DMA
 	select SND_SOC_WM8904
@@ -48,10 +43,11 @@ config SND_ATMEL_SOC_WM8904
 config SND_AT91_SOC_SAM9X5_WM8731
 	tristate "SoC Audio support for WM8731-based at91sam9x5 board"
 	depends on ARCH_AT91 || COMPILE_TEST
-	depends on ATMEL_SSC && SND_ATMEL_SOC && SND_SOC_I2C_AND_SPI
+	depends on ATMEL_SSC && SND_SOC_I2C_AND_SPI
 	select SND_ATMEL_SOC_SSC
 	select SND_ATMEL_SOC_DMA
 	select SND_SOC_WM8731
 	help
 	  Say Y if you want to add support for audio SoC on an
 	  at91sam9x5 based board that is using WM8731 codec.
+endif