Move this over to Kconfig and tidy up.
Signed-off-by: Simon Glass <sjg@chromium.org>
          getidcr - Get a register value via indirect DCR addressing
          setidcr - Set a register value via indirect DCR addressing
 
+config CMD_SOUND
+       bool "sound"
+       depends on SOUND
+       help
+         This provides basic access to the U-Boot's sound support. The main
+         feature is to play a beep.
+
+            sound init   - set up sound system
+            sound play   - play a sound
+
 endmenu
 
 menu "Boot timing"
 
 CONFIG_TARGET_ARNDALE=y
 CONFIG_DEFAULT_DEVICE_TREE="exynos5250-arndale"
 CONFIG_SOUND=y
+CONFIG_CMD_SOUND=y
 
 CONFIG_SPI_FLASH_SANDBOX=y
 CONFIG_TPM_TIS_SANDBOX=y
 CONFIG_SOUND=y
+CONFIG_CMD_SOUND=y
 
 CONFIG_TARGET_SMDK5250=y
 CONFIG_DEFAULT_DEVICE_TREE="exynos5250-smdk5250"
 CONFIG_SOUND=y
+CONFIG_CMD_SOUND=y
 
 CONFIG_CROS_EC_KEYB=y
 CONFIG_CMD_CROS_EC=y
 CONFIG_SOUND=y
+CONFIG_CMD_SOUND=y
 
 #define CONFIG_SYS_INIT_SP_ADDR        CONFIG_IRAM_STACK
 
 /* Sound */
-#define CONFIG_CMD_SOUND
 #ifdef CONFIG_CMD_SOUND
 #define CONFIG_I2S_SAMSUNG
 #define CONFIG_I2S
 
 #define CONFIG_BOARD_LATE_INIT
 
 #define CONFIG_SOUND_SANDBOX
-#define CONFIG_CMD_SOUND
 
 #ifndef SANDBOX_NO_SDL
 #define CONFIG_SANDBOX_SDL