MPEG4Extractor: support MPEG-H 3D Audio (1/2)

MPEG-H 3D Audio is a new spatial sound codec, standardized in
ISO/IEC 23008-3. Add support for demuxing MPEG-H 3D Audio format
in MPEG4Extractor so that vendors can integrate MPEG-H decoder
with Codec2.0 interface.

Add MimeType of MPEG-H 3D Audio.

Test: Build
Bug: 185100731
Change-Id: Ic2e78d03ea6de3db9131b0b02e884a16857c29c6
2 files changed