Nothing too exciting, just adding the possibility for a pNext pointer,
and batch binding. Our binding is pretty much trivial.
It also adds VK_IMAGE_CREATE_ALIAS_BIT_KHR, but since we store no
state in radv_image, I don't think we have to do anything there.
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>