radeonsi/vcn: support 12bit AV1 decoding
What does this MR do and why?
radeonsi/vcn: support 12bit AV1 decoding
Add 12bit AV1 decoding support - AV1 profile2
This feature is supported and tested on VCN5.
Signed-off-by: David (Ming Qiang) Wu <David.Wu3@amd.com>