am 5b37e820: am 5142d733: am 0fcfc2a0: Merge "release AudioTrack after each play - Otherwise, resource leak happens in audioflinger which causes allocation failure when all tests are run. - may be the cause for 5939203" into ics-mr1

* commit '5b37e820d0cbcec7abc5fa502d3973711c3e63b8':
  release AudioTrack after each play - Otherwise, resource leak happens in audioflinger which causes allocation failure when all tests are run. - may be the cause for 5939203