MediaPlayer2: replace IPCThreadState with libbinder_ndk.

checkCallingPermission() testing in dumpPlayers is dropped
since MediaPlayer2 is not running on system service so the
checking in MediaPlayer2 is not meaningful.

Test: make libmedia2_jni
Bug: 112766913
Change-Id: I8af753f0d83689f92348ecf986c30c75d7ae12ff
2 files changed