Merge 6a71c31f1f2cf02f4a639602922fa15abf7152a1 on remote branch

Change-Id: I27a5e021ca416a355298a50860be0221ac51ce3a
tree: a41d56baf78cfc73ce6bea66b4cae7b51a069847
  1. libbt-vendor/
  2. Android.mk
  3. CleanSpec.mk