[CNV-76498] Add IBM Z node options

[SNiemann15]

Version(s): 4.21+

Issue: https://issues.redhat.com/browse/CNV-76498

Link to docs preview: https://104763--ocpdocs-pr.netlify.app/openshift-enterprise/latest/virt/post_installation_configuration/virt-node-placement-virt-components.html

QE review:

• QE has approved this change.

Additional information:

[ocpdocs-previewbot]

🤖 Thu Jan 15 10:29:18 - Prow CI generated the docs preview:

https://104763--ocpdocs-pr.netlify.app/openshift-enterprise/latest/virt/post_installation_configuration/virt-node-placement-virt-components.html
https://104763--ocpdocs-pr.netlify.app/openshift-rosa-hcp/latest/virt/post_installation_configuration/virt-node-placement-virt-components.html
https://104763--ocpdocs-pr.netlify.app/openshift-rosa/latest/virt/post_installation_configuration/virt-node-placement-virt-components.html

[cfilleke]

/lgtm

[openshift-ci]

@SNiemann15: all tests passed!

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[cfilleke]

/lgtm

[aspauldi]

The table shown in the Jira indicates that what is shown in line 39 here should be zKVM (unless I'm reading the table wrong?)

[SNiemann15]

zKVM is one of those expression that IBM Z developers like to use but it's a "don't use" publicly name :-)

[sjhala-ccs]

/cherrypick enterprise-4.21

[openshift-cherrypick-robot]

@sjhala-ccs: new pull request created: #104889

Details

In response to this:

/cherrypick enterprise-4.21

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