add docs on using Azure cni v1 using single NIC per node

[nawazkh]

What type of PR is this?
/kind documentation

What this PR does / why we need it:

• This PR adds documentation, manifests on using Azure CNI v1 with CAPZ using one NIC per node.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Part of #3610

Special notes for your reviewer:

• PR add azure cni e2e tests with one NIC per linux node #3508 should be merged before merging this PR.

• cherry-pick candidate

TODOs:

• squashed commits
• includes documentation
• adds unit tests

Release note:

Adds documentation on using Azure CNI v1 with CAPZ using one NIC per node.

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (e52424e) 54.05% compared to head (39d5ad7) 54.05%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3627   +/-   ##
=======================================
  Coverage   54.05%   54.05%           
=======================================
  Files         186      186           
  Lines       18833    18833           
=======================================
  Hits        10181    10181           
  Misses       8105     8105           
  Partials      547      547           

☔ View full report in Codecov by Sentry.
📢 Do you have feedback about the report comment? Let us know in this issue.

[willie-yao]

Looks great to me! Just one small change from my end.

[mboersma]

/lgtm

(I think we might have to merge #3702 before the link checker will pass.)

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: daf204f11d27fdbb39359757899636c24e0b9aed

[CecileRobertMichon]

(I think we might have to merge #3702 before the link checker will pass.)

the PR merged so you should be able to rebase now

[CecileRobertMichon]

/lgtm
/approve

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 9813ce6f05d168b5daded3f90813f714951acdfa

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: CecileRobertMichon

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• OWNERS [CecileRobertMichon]

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[CecileRobertMichon]

/lgtm

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 50aea07778a9f94f118c68afa531866ddf6289ed