add support to av1 encoding in vcn5
What does this MR do and why?
radeonsi/vcn: add support to av1 encoding in vcn5.
Apply vcn5 av1 encoding changes, it mainly includes features like
tile_info change in the header, chroma_qp_delta and qp_map changes
and etc.
Also it fixed the 1080p encoding to 1082p issue.
Signed-off-by: Ruijing Dong <ruijing.dong@amd.com>