audio: Add support for compressed offload

- Add compressed offload mix port into default implementation.
- Require AudioOffloadInfo to be passed to IModule.openOutputStream
  for compressed offload port configs.
- Update VTS to handle compressed offload.

Bug: 205884982
Test: atest VtsHalAudioCoreTargetTest
Change-Id: I118b2c04bff12b64a7cac4dc2c88217a6a270046