hal: add voice call support on apq8084

APQ8084 uses external modem to make voice calls.
APQ uses CSD QMI interface to communicate with external
modem. Add csd client apis to support voice calls

Change-Id: I11fe0cc614ee38c42e95b40d5cd5e2d8b3afd43a
5 files changed
tree: 87cf807355649d77c936dcc65b829e527a4d3a57
  1. hal/
  2. legacy/
  3. mm-audio/
  4. policy_hal/
  5. visualizer/
  6. voice_processing/
  7. Android.mk