Secondary process is not allowed to register MR due to a restriction of
library and kernel driver.
Fixes: 7e43a32ee0 ("net/mlx5: support externally allocated static memory")
Cc: stable@dpdk.org
Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
Acked-by: Shahaf Shuler <shahafs@mellanox.com>