ASoC: msm: Support for non-DTS Q6 image

If Q6 does not support DTS, LA driver has to exit gracefully.
Introducing a new member cmd_response in audio_client structure
to indicate format is supported or not, and use this cmd_response
to return error from open_write.

Change-Id: Icad30c787e8a5f26ead92584e163721b94ba509d
Signed-off-by: Srikanth Uyyala <suyyala@codeaurora.org>