ASoC: msm8226: Support multichannel playback over proxy port
ASoC: msm8226: Support multichannel playback over proxy port

Add kcontrol to allow configuring the proxy backend to six channels.
This is to support multichannel playback over proxy port on 8x26.

Change-Id: Ib2994edadbb2e1afcace1f058c21458c4b82d6ea
Signed-off-by: Krishnankutty Kolathappilly <272d690af0ea32d87561c4cdb8ad85d432c099a5@codeaurora.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas