Merge tag android-5.1.0_r1 into AOSP_5.1_MERGE

Change-Id: Id1ea3859324f1f1bfe51db50a8a34dcea38f9f30
tree: c4950310f4a7fda1ac5afe349a7178ba7290d0ee
  1. audio_effects/
  2. audio_route/
  3. audio_utils/
  4. camera/
  5. private/
  6. CleanSpec.mk