Add warning message for `prescaler` setting

[200km]

Details

When the prescaler setting of components is smaller than 1, the value is automatically set to 1. We need to add a warning message in that case.

Closing conditions

The warning message is added.

Supplementary information

https://github.com/ut-issl/s2e-core/pull/595#discussion_r1515858642

Note

• Provide a conclusion before closing the issue.