dm: sound: Add conversion to driver model

Move the existing hardware drivers over to use driver model.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/sound/Makefile b/drivers/sound/Makefile
index 70d32c6..75fa31e 100644
--- a/drivers/sound/Makefile
+++ b/drivers/sound/Makefile
@@ -6,9 +6,13 @@
 obj-$(CONFIG_SOUND)	+= sound.o
 obj-$(CONFIG_DM_SOUND)	+= codec-uclass.o
 obj-$(CONFIG_DM_SOUND)	+= i2s-uclass.o
-obj-$(CONFIG_I2S)	+= sound-i2s.o
 obj-$(CONFIG_DM_SOUND)	+= sound-uclass.o
 obj-$(CONFIG_I2S_SAMSUNG)	+= samsung-i2s.o
 obj-$(CONFIG_SOUND_SANDBOX)	+= sandbox.o
+ifdef CONFIG_DM_SOUND
+obj-$(CONFIG_I2S_SAMSUNG)	+= samsung_sound.o
+else
+obj-$(CONFIG_I2S)	+= sound-i2s.o
+endif
 obj-$(CONFIG_SOUND_WM8994)	+= wm8994.o
 obj-$(CONFIG_SOUND_MAX98095)	+= max98095.o