UPSTREAM: ASoC: rt1015: fix the first word being cut off

This patch adds a control that there are four options to control the digital volume output.
The user could select "immediate" to make volume updates immediately.
In default, the driver selects the volume update with "zero detection + soft inc/dec change".

Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link: https://lore.kernel.org/r/20230915020530.83452-1-shumingf@realtek.com


Signed-off-by: Mark Brown <broonie@kernel.org>
(cherry picked from commit 74d71f62)

BUG=b:300032196, b:315768355
TEST=CQ

Change-Id: Ifca93bd61d2012d23b9c78979bd70ed97fab4896
Signed-off-by: Judy Hsiao <judyhsiao@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/5123641


Tested-by: Judy Hsiao <judyhsiao@google.com>
Reviewed-by: Sean Paul <sean@poorly.run>
Commit-Queue: Judy Hsiao <judyhsiao@google.com>
Reviewed-by: Terry Cheong <htcheong@chromium.org>
(cherry picked from commit 48c0e012a3aec1aa07e14674a016a314750a5243)
Signed-off-by: Terry Cheong <htcheong@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/5832172


Reviewed-by: Judy Hsiao <judyhsiao@google.com>
Signed-off-by: Hubert Mazur <hmazur@google.com>