Add mount[boot-efi] platform to mount_option_boot_efi_nosuid rule

[evgenyz]

Description:

• Make the rule explicitly not applicable.

Rationale:

• In order to get closer to the DISA understanding of the applicability for this rule, let's make it not applicable when there is no mountpoint present.

• Fixes DISA misalignment with rule mount_option_boot_efi_nosuid #13006.

Review Hints:

• While platform does not exactly follow the DISA applicability criteria, it'd match the behavior in general. For the cases when it won't it actually would be very useful to check the presence of the mount option (e.g. in double-boot systems, when partition is present, but the system is currently in BIOS mode).

[codeclimate]

Code Climate has analyzed commit ac104cf and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 62.1% (0.0% change).

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[Mab879]

/packit retest-failed