MFH: r531152

multimedia/libva-intel-media-driver: update to 20.1.1

Changes: https://github.com/intel/media-driver/compare/intel-media-20.1.0r...intel-media-20.1.1
Changes: https://github.com/intel/media-driver/releases/tag/intel-media-20.1.1
Reported by: GitHub (watch releases)
Approved by: ports-secteam blanket (reliability fixes)