Extend force_fb_preload to take an optional VkRenderingInfo. When it is non-NULL, this is the unaligned preload and force_fb_preload should clear attachments. Signed-off-by: Chia-I Wu <olvaffe@gmail.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31895>