RDMA/mlx5: Coding style fix reported by checkpatch

Block comments should align the * on each line on line 2849
Avoid line continuations in quoted strings on line 3848

Signed-off-by: Rohit Chavan <roheetchavan@gmail.com>
Link: https://lore.kernel.org/r/20230319100847.5566-1-roheetchavan@gmail.com


Signed-off-by: Leon Romanovsky <leon@kernel.org>