[ALSA] soc - Fix dependencies in Kconfig files

Fixed dependencies in Kconfig files of soc drivers.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@suse.cz>

sound/soc/Kconfig

@@ -10,6 +10,8 @@ config SND_SOC_AC97_BUS
 
 config SND_SOC
 	tristate "SoC audio support"
+	depends on SND
+	select SND_PCM
 	---help---
 
 	  If you want SoC support, you should say Y here and also to the

sound/soc/at91/Kconfig

@@ -2,8 +2,7 @@ menu "SoC Audio for the Atmel AT91"
 
 config SND_AT91_SOC
 	tristate "SoC Audio for the Atmel AT91 System-on-Chip"
-	depends on ARCH_AT91 && SND
-	select SND_PCM
+	depends on ARCH_AT91 && SND_SOC
 	help
 	  Say Y or M if you want to add support for codecs attached to
 	  the AT91 SSC interface. You will also need

sound/soc/pxa/Kconfig

@@ -2,8 +2,7 @@ menu "SoC Audio for the Intel PXA2xx"
 
 config SND_PXA2XX_SOC
 	tristate "SoC Audio for the Intel PXA2xx chip"
-	depends on ARCH_PXA && SND
-	select SND_PCM
+	depends on ARCH_PXA && SND_SOC
 	help
 	  Say Y or M if you want to add support for codecs attached to
 	  the PXA2xx AC97, I2S or SSP interface. You will also need