Add wait and clear bound between pairing attempts

* This CL forces the device to clear bound state after a failed pairing
  attempt
* This CL also mandates that BtStressTest:test_pair_bluetooth_stress
  should pass at the first attempt

Test: BtStressTest:test_pair_bluetooth_stress 3 times
      BtCarMediaConnection Test
Bug: None

Change-Id: I0c5f18c17030b2b1609929a6d644d5f08d34ad69
2 files changed
tree: aeb76a64cde46f06870f037acd5f05b81867690d
  1. acts/
  2. Android.mk
  3. PREUPLOAD.cfg