msm8974: Fix mixer commands for ANC volume

ANC calibration data is tuned for ANC mic volume of 12db.
Currently the ANC volume is set to 21db. This change
lowers it to 12db.
Also set the ADC3 and ADC4 default volume to 0 to lower
the click and pop during ANC enable.

CRs-fixed: 570837
Change-Id: Icb633a21a6c08d45c34639c470bd55de72472679
1 file changed