hal: Fixes for dynamic audio HAL feature enable

- Update audio and voice feature init sequence
- Update API names for querying whether feature is enabled
- Fix A2DP audio_extn APIs
- Fix compress VOIP set parameter default return val issue that
  was causing no other set param to be processed
- Fix dynamic primary usecase check

Change-Id: I08fa3bc369ec197932347b01491588d42655797c