Atom: Update BluetoothConnectionStateChanged atom * Use salted hashed Bluetooth device identifier and deprecate old ofuscted_id * Add BluetoothAclConnectionStateChanged and BluetoothScoConnectionStateChanged to track ACL and SCO connections Bug: 112969790 Test: Bluetooth unit test, test drive with statsd Change-Id: I5398e4caae751e1fe1d6a95fa3bc56d062eb6172 Merged-In: I5398e4caae751e1fe1d6a95fa3bc56d062eb6172 (cherry picked from commit 43bb2349a65d21acca0ffd3119654d604ce3234a)