Add PowerVS Ingress Operator Changes

[dharaneeshvrd]

What this PR does / why we need it:

Added changes for ingress operator https://github.com/openshift/cloud-ingress-operator respect to powervs cloud.
Where secret named cloud-credentials and CIS CRN, PowerVS Region and Zone details are required.

Introduced IngressOperatorCloudCreds in hostedcluster_types.go to create this cloud-credentials secret. Added this as a new secret, so that when we are handling granular permissions in future, we can add appropriate permissions with respect to ingress operator to this secret alone.

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

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

[dharaneeshvrd]

/cc @mkumatag

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[enxebre]

can we do any allowed input validation here? can we add an example to the // doc?

[dharaneeshvrd]

Added a validation here. But this will be generated by the Infra creation process by getting the UUID of the base-domain passed. We already talked about CIS base domain in prerequisite section of PowerVS how-to guide.

[enxebre]

why is this needed?

[dharaneeshvrd]

Updated the PR description, please check.

[enxebre]

I can see the "what" this code doing, but could you please elaborate in the PR and commit desc the "why" these changes are needed? e.g this introduces a IngressOperatorCloudCreds because... (what's solving not possible without it?)

[dharaneeshvrd]

@enxebre Updated the PR description, please have a look.

[csrwng]

/lgtm
/approve

[csrwng]

@dharaneeshvrd looks like you need to rebase
/lgtm cancel

[dharaneeshvrd]

/retest-required

[mkumatag]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: csrwng, dharaneeshvrd, mkumatag

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[openshift-ci]

@dharaneeshvrd: The following test 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	a47abed	link	false	/test capi-provider-agent-sanity

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