sound: Allow audio codecs to be used by other SoCs

At present there is still some samsung-specific code in the audio codecs.
Remove it so that these can be used by other SoCs.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/sound/Kconfig b/drivers/sound/Kconfig
index bd72dd3..40f4f75 100644
--- a/drivers/sound/Kconfig
+++ b/drivers/sound/Kconfig
@@ -32,7 +32,7 @@
 
 config I2S_SAMSUNG
 	bool "Enable I2C support for Samsung SoCs"
-	depends on SOUND
+	depends on I2S
 	help
 	  Samsung Exynos SoCs support an I2S interface for sending audio
 	  data to an audio codec. This option enables support for this,
@@ -42,7 +42,7 @@
 
 config SOUND_MAX98088
 	bool "Support Maxim max98088 audio codec"
-	depends on I2S_SAMSUNG
+	depends on I2S
 	help
 	  Enable the max98088 audio codec. This is connected via I2S for
 	  audio data and I2C for codec control. At present it only works
@@ -50,7 +50,7 @@
 
 config SOUND_MAX98090
 	bool "Support Maxim max98090 audio codec"
-	depends on I2S_SAMSUNG
+	depends on I2S
 	help
 	  Enable the max98090 audio codec. This is connected via I2S for
 	  audio data and I2C for codec control. At present it only works
@@ -58,7 +58,7 @@
 
 config SOUND_MAX98095
 	bool "Support Maxim max98095 audio codec"
-	depends on I2S_SAMSUNG
+	depends on I2S
 	help
 	  Enable the max98095 audio codec. This is connected via I2S for
 	  audio data and I2C for codec control. At present it only works