net/mlx5: fix typos in comments

net/mlx5: fix typos in comments

Some spelling mistakes were found in comments.
This patch fixes them.

Fixes: d10b09db0a45 ("net/mlx5: fix allocation when no memory on device NUMA node")
Fixes: fc2c498ccb94 ("net/mlx5: add Direct Verbs translate items")
Fixes: 7d6bf6b866b8 ("net/mlx5: add Multi-Packet Rx support")
Fixes: f6d9ab4e769f ("net/mlx5: check Tx queue size overflow")
Cc: stable@dpdk.org
Signed-off-by: Dekel Peled <dekelp@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>