sandbox: exynos: Move CONFIG_SOUND to Kconfig

Move this over to Kconfig and tidy up.

Signed-off-by: Simon Glass <sjg@chromium.org>

configs/arndale_defconfig

@@ -3,3 +3,4 @@ CONFIG_ARM=y
 CONFIG_ARCH_EXYNOS=y
 CONFIG_TARGET_ARNDALE=y
 CONFIG_DEFAULT_DEVICE_TREE="exynos5250-arndale"
+CONFIG_SOUND=y

configs/sandbox_defconfig

@@ -23,3 +23,4 @@ CONFIG_SYS_I2C_SANDBOX=y
 CONFIG_SANDBOX_SPI=y
 CONFIG_SPI_FLASH_SANDBOX=y
 CONFIG_TPM_TIS_SANDBOX=y
+CONFIG_SOUND=y

configs/smdk5250_defconfig

@@ -3,3 +3,4 @@ CONFIG_ARM=y
 CONFIG_ARCH_EXYNOS=y
 CONFIG_TARGET_SMDK5250=y
 CONFIG_DEFAULT_DEVICE_TREE="exynos5250-smdk5250"
+CONFIG_SOUND=y

configs/snow_defconfig

@@ -7,3 +7,4 @@ CONFIG_CROS_EC=y
 CONFIG_CROS_EC_I2C=y
 CONFIG_CROS_EC_KEYB=y
 CONFIG_CMD_CROS_EC=y
+CONFIG_SOUND=y

drivers/sound/Kconfig

@@ -0,0 +1,11 @@
+config SOUND
+	bool "Enable sound support"
+	help
+	  Support making sounds through an audio codec. This is normally a
+	  beep at a chosen frequency for a selected length of time. However
+	  the drivers support playing arbitrary sound samples using a
+	  PCM interface.
+
+	  Note: At present the sound setup is somewhat tangled up in that the
+	  audio codecs are called from the sound-i2s code. This could be
+	  converted to driver model.

include/configs/exynos5250-common.h

@@ -31,7 +31,6 @@
 /* Sound */
 #define CONFIG_CMD_SOUND
 #ifdef CONFIG_CMD_SOUND
-#define CONFIG_SOUND
 #define CONFIG_I2S_SAMSUNG
 #define CONFIG_I2S
 #define CONFIG_SOUND_MAX98095

include/configs/sandbox.h

@@ -151,7 +151,6 @@
 
 #define CONFIG_BOARD_LATE_INIT
 
-#define CONFIG_SOUND
 #define CONFIG_SOUND_SANDBOX
 #define CONFIG_CMD_SOUND