common/mlx5: enhance page size configuration
common/mlx5: enhance page size configuration

The PRM calculates page size in 4K, so need to reduce the log_wq_pg_sz
attribute.

Signed-off-by: Michael Baum <ea5d219418f4ca0051d96051b5f634ca452be1f3@nvidia.com>
Acked-by: Matan Azrad <6969f5f553ad7652679a585a85d7321babc90464@nvidia.com>

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