ASoC: msm: Add playback support for AC3/EC3 in compress driver

- Dolby DS1 supports both AC3 and EC3 playback in compress
  path. Add code in offload compress driver to support
  playback of AC3/EC3 formats.

Change-Id: I4fb5ee01c47dd7ac083c6180693b87e9fbb4fa0a
Signed-off-by: Mingming Yin <mingming@codeaurora.org>
Signed-off-by: flar2 <asegaert@gmail.com>