net: sched: change return value of ndo_setup_tc for driver supporting mqprio only

Change the return value from -EINVAL to -EOPNOTSUPP. The rest of the
drivers have it like that, so be aligned.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 97d8bb2..1f46338 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -5660,7 +5660,7 @@ static int __i40e_setup_tc(struct net_device *netdev, enum tc_setup_type type,
 			   struct tc_to_netdev *tc)
 {
 	if (type != TC_SETUP_MQPRIO)
-		return -EINVAL;
+		return -EOPNOTSUPP;
 
 	tc->mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS;