clover: bind constant buffer if one is provided

We will use that with NIR as it is easier to manage the constant buffer
inside clover instead of letting all drivers to deal with it.

Signed-off-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6569>
4 files changed