msm: audio: support for gapless_pcm

snd_codec_option structure for gapless_pcm_playback.
This is used for updating the channels in gapless pcm
cases.

Change-Id: Id0d950f0f431e5d9fe2a8ccd5e5124a235b66f27
Acked-by: Janamaddi Sravan Kumar <c_jsrava@qti.qualcomm.com>
Signed-off-by: Nidhisha Dhananjayan <nidhis@codeaurora.org>