Fixed routing change bug

(1) Change logic of addAudioDeviceCallback() since mJAudioTrack is
likely to be null when this function is called.
(2) Replace add/removeGlobalRef() with JObjectHolder
(3) Replace std::vector with utils/Vector.h

Test: android.media.cts.RoutingTest#test_MediaPlayer2_RoutingChangedCallback with routing change log
Bug: 127314187

Change-Id: I62d9c7600c710b49f0435bd1fc2741d79c928b55