ASoC: msm: Add packed 16-bit format support for SLIM_4_TX

SLIM_4_TX cpu dai is used to receive VI-sense data from
the CODEC. Add format support to the cpu dai so that
packed 16-bit format can be set on certain codecs.

Change-Id: Ifd837640c6a413b047156db14d9006b30b1c3be0
Signed-off-by: Phani Kumar Uppalapati <phaniu@codeaurora.org>
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>