ASoC: msm: Add 12000Hz and 24000Hz support to ALSA driver for Mult-Ch-Pcm

ALSA framework does not support audio playback with sampling rate
12000Hz and 24000Hz. Add 12000Hz and 24000Hz support to ALSA
driver.

CRs-Fixed: 353893
Change-Id: I60448d63122b18ab2ec970356dd209d116249553
Signed-off-by: Krishnankutty Kolathappilly <kkolat@codeaurora.org>

Conflicts:

	sound/soc/msm/msm-multi-ch-pcm-q6.c

Fixing conflicts due to the addition of mult-ch-pcm