The changes to the VideoInfo, notably the stride from the VideoMeta,
were lost. Avoid such mistakes by explicitly using the VideoInfo from
drm_info.
Fixes: 9f5b2c4e25 ("va: use GstVideoInfoDmaDrm when importing buffers")
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7187>