ASoC: dt-bindings: rt5682s: add AMIC delay time property

Add the AMIC delay time to control how much delay time (ms) to unmute the stereo1 ADC.

Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link: https://lore.kernel.org/r/20211208101654.28925-1-shumingf@realtek.com


Signed-off-by: Mark Brown <broonie@kernel.org>