zink: fix zink_destroy_screen for early screen creation fails

Fixes crashes on at least my system with multiple GPUs.

Fixes: 0c2045553fe ("zink: use screen destructor for creation fails")
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25844>
1 file changed