ASoC: msm-cpe-lsm: add support for two CPE sessions

Existing CPE(Codec Processing Engine) driver supports single session.
Add support for two sessions with different sampling rates.

CRs-fixed: 1022917
Change-Id: Icb355cd07db9cc66632ac0ea14464c5610919725
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>
Signed-off-by: Vidyakumar Athota <vathota@codeaurora.org>