mlxsw: adjust transmit fail log message level in __mlxsw_emad_transmit

When transmit fails, it is an error, not a warning.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Elad Raz <eladr@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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

@@ -376,7 +376,7 @@ static int __mlxsw_emad_transmit(struct mlxsw_core *mlxsw_core,
 
 	err = mlxsw_core_skb_transmit(mlxsw_core->driver_priv, skb, tx_info);
 	if (err) {
-		dev_warn(mlxsw_core->bus_info->dev, "Failed to transmit EMAD (tid=%llx)\n",
+		dev_err(mlxsw_core->bus_info->dev, "Failed to transmit EMAD (tid=%llx)\n",
 			mlxsw_core->emad.tid);
 		dev_kfree_skb(skb);
 		return err;