net/mlx4_en: Fix selftest failing on non 10G link speed

Connect-X devices selftest speed test shouldn't fail on 1G and 40G link
speeds.
Signed-off-by: NAmir Vadai <amirv@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

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

@@ -129,8 +129,10 @@ static int mlx4_en_test_speed(struct mlx4_en_priv *priv)
 	if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
 		return -ENOMEM;
 
-	/* The device currently only supports 10G speed */
-	if (priv->port_state.link_speed != SPEED_10000)
+	/* The device supports 1G, 10G and 40G speeds */
+	if (priv->port_state.link_speed != 1000 &&
+	    priv->port_state.link_speed != 10000 &&
+	    priv->port_state.link_speed != 40000)
 		return priv->port_state.link_speed;
 	return 0;
 }