net/mlx4: fix rxq interrupt memory corruption
net/mlx4: fix rxq interrupt memory corruption

intr_vec allocation size was wrong causing a memory corruption.

Fixes: 0a2ae703192c ("net/mlx4: fix Rx interrupts management")
Cc: stable@dpdk.org

Signed-off-by: Shahaf Shuler <59427d49da6f2b944fbf4cb5ee70ef3ac25f744f@mellanox.com>
Acked-by: Adrien Mazarguil <9d39ea493ca46c560334f650ac5d4b5ffbcb5cf0@6wind.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk