label nodes with the name of the autoscaling group they belong to

[luckyganesh]

What type of PR is this?

/kind feature

What this PR does / why we need it:

Which issue(s) this PR fixes:
Fixes #884

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

NONE

[k8s-ci-robot]

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[k8s-ci-robot]

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[k8s-ci-robot]

Hi @luckyganesh. Thanks for your PR.

I'm waiting for a kubernetes member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.