audio HAL: Add retry to get mixer in adev_open

If the sound card is not created in kernel before audio hal initialized
by audio flinger, the mixer open would be failed.
This is timing issue. So retry routine is need.

Change-Id: Icff3cd53763bfc483725849874fe27ff4de28890
3 files changed
tree: eb57282357fb67720abf71a4c304676f3dfef1e2
  1. hal/
  2. legacy/
  3. voice_processing/
  4. Android.mk