d3d12: Add support for retrieving PIPE_VIDEO_CAP_ENC_MAX_LONG_TERM_REFERENCES_PER_FRAME for H264/H265 encode

Signed-off-by: Pohsiang Hsu <pohhsu@microsoft.com>
Reviewed-by: Sil Vilerino <sivileri@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34844>
1 file changed