wireless: T6318: add quotes for console speed in config-tests

[c-po]

Change Summary

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Code style update (formatting, renaming)
• Refactoring (no functional changes)
• Migration from an old Vyatta component to vyos-1x, please link to related PR inside obsoleted component
• Other (please describe):

Related Task(s)

• https://vyos.dev/T6318

Related PR(s)

• wireless: T6318: move country-code to a system wide configuration #3656

Component(s) name

Wireless

Proposed changes

Checklist:

• I have read the CONTRIBUTING document
• I have linked this PR to one or more Phabricator Task(s)
• I have run the components SMOKETESTS if applicable
• My commit headlines contain a valid Task id
• My change requires a change to the documentation
• I have updated the documentation accordingly

[github-actions]

👍
No issues in PR Title / Commit Title

[jestabro]

Backport needed for Circinus configtest

[jestabro]

@Mergifyio backport circinus

[mergify]

backport circinus

✅ Backports have been created

• #4051 wireless: T6318: add quotes for console speed in config-tests (backport #3675) has been created for branch circinus