UPSTREAM: ASoC: tas2781: Fix occasional calibration failture

The root cause is that TAS2781 internal register is not unlocked
before writing data into TAS2781_PRM_TEST_57_REG.

Fixes: 49e2e353 ("ASoC: tas2781: Add Calibration Kcontrols for Chromebook")
Signed-off-by: Shenghao Ding <shenghao-ding@ti.com>
Link: https://patch.msgid.link/20241227074909.1974-1-shenghao-ding@ti.com


Signed-off-by: Mark Brown <broonie@kernel.org>
(cherry picked from commit cf86e0ae)

BUG=b:357753807
TEST=emerge-rauru sys-kernel/chromeos-kernel-6_6

Change-Id: I1ae6d5b29dc0a63cf279533bbf41132f53fd97a3
Signed-off-by: Fei Shao <fshao@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/6182420


Reviewed-by: Sean Paul <sean@poorly.run>
Commit-Queue: Yu-Che Cheng <giver@chromium.org>
Reviewed-by: Yu-Che Cheng <giver@chromium.org>
Signed-off-by: Hubert Mazur <hmazur@google.com>