Wait until operator is rolled out after its deployment is changed

[dmage]

This should fix flakes when proxy environments leak into another test.

For example in https://prow.svc.ci.openshift.org/view/gcs/origin-ci-test/pr-logs/pull/openshift_cluster-image-registry-operator/507/pull-ci-openshift-cluster-image-registry-operator-master-e2e-aws-operator/2524, TestImageRegistryGracefulShutdown:

          - lastTransitionTime: "2020-04-01T13:58:46Z"
            message: |-
              RequestError: send request failed
              caused by: Head https://ci-op-h5fdww49-12abb-grk4s-image-registry-us-west-2-vyoknhwswx.s3.dualstack.us-west-2.amazonaws.com/: proxyconnect tcp: dial tcp: lookup https.example.org on 172.30.0.10:53: no such host
            reason: Unknown Error Occurred
            status: Unknown
            type: StorageExists

[dmage]

/assign @ricardomaraschini @adambkaplan

[ricardomaraschini]

/lgtm

[ricardomaraschini]

/test e2e-aws-image-registry

[ricardomaraschini]

@dmage ops, seems like we have conflict.

[ricardomaraschini]

/lgtm cancel

[dmage]

flake, should be fixed by #509
/test e2e-aws-operator

[dmage]

@ricardomaraschini ptal, I rebased and did some minor fixes

[ricardomaraschini]

/lgtm

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dmage, ricardomaraschini

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• OWNERS [dmage]

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[openshift-bot]

/retest

Please review the full test history for this PR and help us cut down flakes.