[Bugfix][API-1621][audio] add api to set  mic volume and zk default mic
volume is set to 1

Only Configure: No
Affected branch: MR3.0-Merge-v2.0-ZK
Affected module: audio
Is it affected on both ZXIC and MTK: mtk
Self-test: Yes
Doc Update: No

Change-Id: I2931f8c39f8088adaff9cf413724c3d4983a508f
3 files changed