ASoC: wcd934x: use analog mics in micbias mode for MAD

It is possible to route analog microphone data to the MAD (Microphone
Activity Detection) block in the codec. Currently, VDDIO mode is used
for analog microphones, which can cause degradation of audio data,
causing no detection from the MAD block. Change the MAD programming
to use micbias instead of VDDIO mode for analog microphones to fix
this signal degradation problem.

CRs-fixed: 2021869
Change-Id: I77e089bd9858e5179405f87982b16ddaf7b4cd5b
Signed-off-by: Bhalchandra Gajare <gajare@codeaurora.org>
1 file changed