T5017: Add interface ifbX to constraint interface-name

[sever-sever]

Change Summary

Add interface ifbX to constraint interface-name

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/T5017

Component(s) name

interface, ifb

Proposed changes

How to test

Before fix:

vyos@r14# set interfaces input ifb0
[edit]
vyos@r14# set interfaces ethernet eth0 redirect 'ifb0'

  Incorrect path /sys/class/net/ifb0: no such file or directory
  
  
  
  Invalid value
  Value validation failed
  Set failed

[edit]
vyos@r14# 

After fix:

vyos@r14# set interfaces input ifb0
[edit]
vyos@r14# set interfaces ethernet eth0 redirect 'ifb0'
[edit]
vyos@r14# 

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