msm: Add support for amr-wb+ non-tunnel driver

-Non tunnel playback is use case where compressed
 data is sent to driver(for decoding) and
 caller expects PCM data back from the driver.
-Add non-tunnel driver for amr-wb+.
-Add support for amr-wb+ in asm driver.

Change-Id: I266e70dff0466a20b0435da840a31a8a1774cf35
Signed-off-by: Ajit Khare <ajitk@codeaurora.org>