ASoC: wcd9320: Add MAD on/off switch

Add MAD on/off ALSA mixier control switch so MAD can be turned off without
disjoining front end and back end.  This will give us ability to turn on
and off listen service with lower latency.

Change-Id: Ib4270963fbcaaebdc9523a1ada3701cf9ad6b520
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
1 file changed