hal: add USB TTY support

- add USB tty related devices
- enable USB TTY i/p o/p device selection

Change-Id: I2da6c7fcf400ff5a33b2eb6cbd16fa0fbbc01fbc
Signed-off-by: David Lin <dtwlin@google.com>
2 files changed
tree: a7b14c70d6813ee163956dd0b067b76b4447b8c4
  1. hal/
  2. legacy/
  3. post_proc/
  4. visualizer/
  5. voice_processing/
  6. Android.mk