Allow certain EndpointAccess transitions

[sjenning]

What this PR does / why we need it:
First step for https://issues.redhat.com/browse/HOSTEDCP-572

Which issue(s) this PR fixes (optional, use fixes #<issue_number>(, fixes #<issue_number>, ...) format, where issue_number might be a GitHub issue, or a Jira story:
Fixes #

Checklist

• Subject and description added to both, commit and PR.
• Relevant issues have been referenced.
• This change includes docs.
• This change includes unit tests.

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: sjenning

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[csrwng]

/lgtm

[sjenning]

Since it failed e2e due to #1764 I went ahead and included the code to make this work end to end

[sjenning]

/retest-required

[openshift-ci]

@sjenning: 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/capi-provider-agent-sanity	8815371	link	false	/test capi-provider-agent-sanity
ci/prow/kubevirt-e2e-kubevirt-gcp-ovn	8815371	link	false	/test kubevirt-e2e-kubevirt-gcp-ovn
ci/prow/kubevirt-e2e-kubevirt-azure-ovn	8815371	link	false	/test kubevirt-e2e-kubevirt-azure-ovn

Full PR test history. Your PR dashboard.

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[enxebre]

/lgtm

[openshift-ci-robot]

/retest-required

Remaining retests: 0 against base HEAD f1b8426 and 2 for PR HEAD 8815371 in total