audio_hw: Check if usb device is removed before opening stream
am: d9653bdbca

Change-Id: I5426782de38f06181b6a772c8a741b5248b579ff
tree: 533afceae38e1f42c8220205f7777893eeeb9ab8
  1. hal/
  2. legacy/
  3. post_proc/
  4. visualizer/
  5. voice_processing/
  6. Android.mk