am 5e1997a0: am ad9d6b03: am 2d8e55f4: camera2: Add tracing to AutoFocusStateMachine (lens-locking actions only)

* commit '5e1997a0e9775d70c42acb48c8333745a6b00b8c':
  camera2: Add tracing to AutoFocusStateMachine (lens-locking actions only)