i965: don't forget to set screen on duped image

We'll start using this field more for querying image properties.
Without it we run into a crash.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: <mesa-stable@lists.freedesktop.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4861>

src/mesa/drivers/dri/i965/intel_screen.c

@@ -980,6 +980,7 @@ intel_dup_image(__DRIimage *orig_image, void *loaderPrivate)
       return NULL;
 
    brw_bo_reference(orig_image->bo);
+   image->screen          = orig_image->screen;
    image->bo              = orig_image->bo;
    image->internal_format = orig_image->internal_format;
    image->planar_format   = orig_image->planar_format;