ASoC: qdsp6: Add support for gapless audio playback

Update ASM driver to support for gapless audio playback in
tunnel mode.

Change-Id: Id1f25afef25b3636fb50dc08b5feb803150d1b59
Signed-off-by: Ravi Kumar Alamanda <ralama@codeaurora.org>
Signed-off-by: Subhash Chandra Bose Naripeddy <snariped@codeaurora.org>

Conflicts:
	sound/soc/msm/qdsp6v2/q6asm.c