Currently we parse max_msg_sz from the wrong offset in QUERY_DEV_CAP,
fix to use the right offset.
Fixes: 0b131561a7d6 ('net/mlx4_en: Add Flow control statistics [..]') Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>