MPEG4Extractor: parse Sample Auxiliary Information in mdat

Bug: 153661591
Test: MediaDrmClearkeyTest
Test: NativeMediaDrmClearkeyTest
Test: SimultaneousClearAndProtectedDecodeTest
Test: WidevineH264PlaybackTests
Test: WidevineHEVCPlaybackTests
Change-Id: I8128dd226f63e344e29d277c2f5220b868342e2e
1 file changed