AudioTrackThread, AudioRecordThread: enable Java calling

When an AudioTrack or AudioRecord is created by system server,
if restoreTrack_l() or restoreRecord_l() is called from AudioTrackThread
or AudioRecordThread, and that then calls audioserver through binder,
which then calls a Java service, binder recursion may call Java
on the original calling thread.

Test: bluetooth calls don't crash
Bug: 126948865
Bug: 127619936
Change-Id: I41fcb666d07c4ab985f5590e40e0c310709e786d