ASoc: msm: Add check for compressed capture format

- Only AMRWB format is supported in compress capture
  path, use default codec.id(SND_AUDIOCODEC_AMRWB) if
  request codec id is invalid.
- Use fixed band mode and dtx mode since these are the
  only supported parameters for AMRWB format

Change-Id: I45a48952a5833c3e85588b515d38d311064cd7fb
Signed-off-by: Mingming Yin <mingming@codeaurora.org>
Signed-off-by: Krishnankutty Kolathappilly <kkolat@codeaurora.org>