mlxsw: spectrum_router: Do not configure VID for sub-port RIFs

The field 'vid' in RITR is reserved when unified bridge model is used
and the RIF's type is sub-port RIF. Instead, ingress VID is configured via
SVFA and egress VID is configured via REIV.

Set 'vid' to zero in RITR register for sub-port RIF when unified bridge
model is used.
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c

@@ -9325,7 +9325,7 @@ static int mlxsw_sp_rif_subport_op(struct mlxsw_sp_rif *rif, bool enable)
 	mlxsw_reg_ritr_sp_if_pack(ritr_pl, rif_subport->lag,
 				  rif_subport->lag ? rif_subport->lag_id :
 						     rif_subport->system_port,
-				  rif_subport->vid);
+				  mlxsw_sp->ubridge ? 0 : rif_subport->vid);
 
 	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
 }