This will get ISOBMFF and Matroska up to date with the revised AV1 Codec
Configuration Box spec.
For now keep propagating raw OBUs as extradata until all libavcodec modules
are adapted to handle AV1CodecConfigurationRecord formatted extradata.
Tested-by: Thomas Daede <bztdlinux@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>