Backport of "av1parser: Don't consider unknown metadata OBUs a bitstream error" into 1.22
requested to merge tpm/gstreamer:backport-mr-3898-into-1.22-av1parse-unknown-metadata-no-error into 1.22
Backport of !3898 (merged) "av1parser: Don't consider unknown metadata OBUs a bitstream error".
Commits:
- 5119ca25 av1parser: Don't consider unknown metadata OBUs a bitstream error