ASoC: msm: qdsp6v2: Add support for EVRCNW format

Add changes to support VoIP call with EVRCNW audio format.

Change-Id: Iaaedbc6434cee4a59bf22c265bfe463df55a19fd
Signed-off-by: Narsinga Rao Chella <nrchella@codeaurora.org>
Signed-off-by: flar2 <asegaert@gmail.com>