net/mlx4: fix spelling mistake: "enforcment" -> "enforcement"

Trivial fix to spelling mistake in mlx4_dbg debug message
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Acked-by: NTariq Toukan <tariqt@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlx4/cmd.c

@@ -3280,7 +3280,7 @@ int mlx4_set_vf_link_state(struct mlx4_dev *dev, int port, int vf, int link_stat
 
 	if (mlx4_master_immediate_activate_vlan_qos(priv, slave, port))
 		mlx4_dbg(dev,
-			 "updating vf %d port %d no link state HW enforcment\n",
+			 "updating vf %d port %d no link state HW enforcement\n",
 			 vf, port);
 	return 0;
 }