[U-Boot] [PATCH v2 02/22] dm: sound: Create an option to use driver model for sound

[sjg at google.com]

The U-Boot sound system provides basic support for beeping. At present it
does not use driver model, but it needs to be converted. Add an option to
enable driver model for sound. For now it is not connected to anything.
Future work will add drivers which use this option. It will then be
removed once everything is converted.

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

Changes in v2:
- Use Kconfig instead of defconfig to define DM_SOUND

 arch/Kconfig          | 1 +
 drivers/sound/Kconfig | 6 ++++++
 2 files changed, 7 insertions(+)

Applied to u-boot-dm/master