Integrate with cluster-autoscaler's ProvisioningRequest

[alculquicondor]

What would you like to be added:

Use #993 to integrate with the ProvisioningRequest API by cluster autoscaler kubernetes/autoscaler#5848

Why is this needed:

This will allow atomic scale ups (depending on the provider implementation of cluster-autoscaler).

Completion requirements:

This enhancement requires the following artifacts:

• Design doc
• API change
• Docs update

The artifacts should be linked in subsequent comments.

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/lifecycle stale

[tenzen-y]

@alculquicondor Is this still needed? I think this already done.

[alculquicondor]

oh yes, the PR is #1154

I guess we duplicated this issue here #1136

/close

[k8s-ci-robot]

@alculquicondor: Closing this issue.

In response to this:

oh yes, the PR is #1154

I guess we duplicated this issue here #1136

/close

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