Draft: vl/dri2: offer vl_dri2_screen_create only when X11 DRI2 is enabled
What does this MR do and why?
vl/dri2: offer vl_dri2_screen_create only when X11 DRI2 is enabled
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/11588
Fixes: b919bdc6f60a ("gallium/video: Move DRI2 support behind legacy-x11")
Signed-off-by: David Heidelberg <david@ixit.cz>