[release-1.2] ctrl: fix MaxSockets calculation

[acardace]

This patch fixes the test test_id:6867 when LiveUpdate is used as a rollout-strategy.
https://prow.ci.openshift.org/view/gs/test-platform-results/pr-logs/pull/kubevirt_hyperconverged-cluster-operator/2846/pull-ci-kubevirt-hyperconverged-cluster-operator-main-hco-e2e-kv-smoke-gcp/1798844855967813632

MaxSockets was not considering CPU requests, this fixes it.

What this PR does

Before this PR:
Test 'test_id:6867' fails with LiveUpdate as rollout-strategy.

After this PR:

Test 'test_id:6867' passes with LiveUpdate as rollout-strategy.

Fixes #

Why we need it and why it was done in this way

The following tradeoffs were made:

The following alternatives were considered:

Links to places where the discussion took place:

Special notes for your reviewer

Checklist

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• Design: A design document was considered and is present (link) or not required
• PR: The PR description is expressive enough and will help future contributors
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• Upgrade: Impact of this change on upgrade flows was considered and addressed if required
• Testing: New code requires new unit tests. New features and bug fixes require at least on e2e test
• Documentation: A user-guide update was considered and is present (link) or not required. You want a user-guide update if it's a user facing feature / API change.
• Community: Announcement to kubevirt-dev was considered

Release note

NONE

[acardace]

/test pull-kubevirt-unit-test

[fossedihelm]

Thank you

[acardace]

/hold
the issue might lie somewhere else, still investigating

[jean-edouard]

/approve
/hold cancel

[kubevirt-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jean-edouard

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[acardace]

@jean-edouard @fossedihelm this fix is specific because the code in main has changed and diverges now (main is fixed).

[kubevirt-bot]

@acardace: 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
pull-kubevirt-verify-rpms	62ac1d9	link	false	/test pull-kubevirt-verify-rpms
pull-kubevirt-goveralls	62ac1d9	link	false	/test pull-kubevirt-goveralls
pull-kubevirt-fossa	62ac1d9	link	true	/test pull-kubevirt-fossa
pull-kubevirt-metrics-lint	62ac1d9	link	false	/test pull-kubevirt-metrics-lint

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[kubevirt-commenter-bot]

/retest-required
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