Implement VK_KHR_video_encode_quantization_map on < VCN5. Passes CTS for `*quantization_map*`. Signed-off-by: Autumn Ashton <misyl@froggi.es> Reviewed-by: David Rosca <david.rosca@amd.com> Closes: #13717 Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36797>