N7100: Fix incall BT audio and cleanup

- Fixes incall bluetooth audio (thanks to codeworkx for idea)
- Cleanup audio routing
- Cleanup audio volumes
- Cleanup power_profile to match stock values

Change-Id: I40e8f5df5e892475e73f7eae3e4418824385cc52
Fix audio recording on N7100

Change-Id: I627fb63c45c5d0971f7dbc60fd5c246d1a1148bb