[release-1.10] wait for provisioning state in AKS e2e tests

[mboersma]

What type of PR is this?

/kind flake

What this PR does / why we need it:

Manual cherry-pick of #4255.

Which issue(s) this PR fixes:

Refs #3955

Special notes for your reviewer:

TODOs:

• squashed commits
• includes documentation
• adds unit tests

Release note:

NONE

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (b18aaf7) 54.38% compared to head (931645f) 54.38%.
Report is 1 commits behind head on release-1.10.

Additional details and impacted files

@@              Coverage Diff              @@
##           release-1.10    #4272   +/-   ##
=============================================
  Coverage         54.38%   54.38%           
=============================================
  Files               186      186           
  Lines             18906    18906           
=============================================
  Hits              10282    10282           
  Misses             8069     8069           
  Partials            555      555           

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[mboersma]

/retest

[CecileRobertMichon]

/lgtm
/approve

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: f27a1868b2af495d9eced6290697bde1012d93a0

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: CecileRobertMichon

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