video: Move hardware-related definitions from virgl_video.h to virgl_video_hw.h

Considering the increasing number of hardware-related definitions,
it is better to put them in separate files.

Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Boyuan Zhang <Boyuan.Zhang@amd.com>
Part-of: <https://gitlab.freedesktop.org/virgl/virglrenderer/-/merge_requests/940>
5 files changed