net/mlx5: Replace strcpy with strscpy

Replace deprecated strcpy with strscpy.

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://lore.kernel.org/r/20240613210036.1125203-4-tariqt@nvidia.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>