USHIFT-2975: Fix all kickstart files not to use nmcli

[ggiguash]

Follow-up fix on #3256

[openshift-ci-robot]

@ggiguash: This pull request references USHIFT-2975 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 bug to target the "4.16.0" version, but no target version was set.

In response to this:

Follow-up fix on #3256

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[dhensel-rh]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dhensel-rh, ggiguash

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[openshift-ci-robot]

/retest-required

Remaining retests: 0 against base HEAD c796cbf and 2 for PR HEAD 36c06f7 in total

[openshift-ci]

@ggiguash: all tests passed!

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