audio: Added mixer control to select Master/Slave mode for Voice port.

audio: Added mixer control to select Master/Slave mode for Voice port.

BZ: 25500

Added mixer control to select Master/Slave mode for Voice port.
For Voip call the Voice port need to be configured in I2S master mode and
for CSV call Voice port need to be configured in I2S Slave mode.
This patch add's mixer control to select Master and Slave Mode for Voice port

Change-Id: I6cd9370a5cd57b0a099906afcdcbe1b79ffbafdc
Signed-off-by: KP, Jeeja <jeeja.kp@intel.com>
Reviewed-on: http://android.intel.com:8080/39088
Reviewed-by: Koul, Vinod <vinod.koul@intel.com>
Reviewed-by: Agarwal, Vaibhav <vaibhav.agarwal@intel.com>
Reviewed-by: M, Arulselvan <arulselvan.m@intel.com>
Tested-by: M, Arulselvan <arulselvan.m@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>