MFH: r566294

multimedia/dav1d: update to 0.8.2

Changes: https://code.videolan.org/videolan/dav1d/-/tags/0.8.2
Changes: https://code.videolan.org/videolan/dav1d/-/blob/0.8.2/NEWS
Changes: https://code.videolan.org/videolan/dav1d/compare/0.8.1...0.8.2
Reported by: Repology