Transmit errors must not be reported in q_errors[] which is for
reception.
Fixes: 7fae69eeff13 ("mlx4: new poll mode driver")
Cc: stable@dpdk.org
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Shahaf Shuler <shahafs@mellanox.com>