OAPE-148: Promote CPMSMachineNamePrefix feature gate to default feature set

[chiragkyal]

/hold

[openshift-ci]

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[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: chiragkyal
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[openshift-ci]

@chiragkyal: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e-aws-ovn-hypershift	ab8362b	link	true	/test e2e-aws-ovn-hypershift
ci/prow/e2e-aws-serial-techpreview	ab8362b	link	true	/test e2e-aws-serial-techpreview
ci/prow/verify-feature-promotion	ab8362b	link	true	/test verify-feature-promotion
ci/prow/okd-scos-e2e-aws-ovn	ab8362b	link	false	/test okd-scos-e2e-aws-ovn
ci/prow/e2e-azure	ab8362b	link	false	/test e2e-azure

Full PR test history. Your PR dashboard.

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[openshift-ci-robot]

@chiragkyal: This pull request references OAPE-148 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the story to target the "4.19.0" version, but no target version was set.

In response to this:

/hold

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[openshift-merge-robot]

PR needs rebase.

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[chiragkyal]

/test verify-feature-promotion