ASoC: msm: qdsp6v2: Fix asm bitwidth for next track in gapless mode

asm is opened at fixed bitwidth 16 for next track in gapless mode.
This is causing noise when a 24 bit clip is played in single repeat
gapless mode.
By opening asm based on input stream bitwidth, asm is configured
at appropriate bitwidth.

Change-Id: Icc815d0a812fa17ae981cdeaf8e56142623deb79
CRs-Fixed: 778865
Signed-off-by: Amit Shekhar <ashekhar@codeaurora.org>