intel/l3: Return the URB size from devinfo for DG1

We don't have any URB size set in the L3 config, since it's a fixed
value now. So just return the value that we know from gen_device_info.

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4956>
1 file changed