Various fixes for audio device

- Move define:BRUNO to where it should be
- Move Bruno playout starting before play thread process to prevent racing
  condition (play thread starts requesting for buffer but playout is not
  started yet)
- Set record frequency to 16k due to Namuga microphone's restriction

Change-Id: Ia3e15583ff0d3e7363300813a9187c5a0a942fcd
2 files changed