Libva 2.11.0

• add: LibVA Protected Content API
• add: Add a configuration attribute to advertise AV1d LST feature
• fix: wayland: don't try to authenticate with render nodes
• autotools: use shell grouping instead of sed to prepend a line
• trace: Add details data dump for mpeg2 IQ matrix.
• doc: update docs for VASurfaceAttribPixelFormat
• doc: Libva documentation edit for AV1 reference frames
• doc: Modify AV1 frame_width_minus1 and frame_height_minus1 comment
• doc: Remove tile_rows and tile_cols restriction to match AV1 spec
• doc: Format code for doxygen output
• doc: AV1 decode documentation edit for superres_scale_denominator
• ci: upgrade FreeBSD to 12.2
• ci: disable travis build
• ci: update cache before attempting to install packages
• ci: avoid running workloads on other workloads changes
• ci: enable github actions