pan/bi: Lower +CUBEFACE2

We need to inject a *CUBEFACE1 at pack-time so everything works out.
This is a pretty ugly hack but it'll hold us over until we have a real
scheduler, at which point it won't be necessary at all.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7408>
1 file changed