Set feature gates in kube-proxy ConfigMap

[maciejaszek]

Command line flags aren't added to kube-proxy which results in missing
feature gates set in this component. Add appropriate setting to
ConfigMap instead.

Signed-off-by: Maciej Wereski [email protected]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespaces from that line:

/kind api-change
/kind bug
/kind cleanup
/kind design
/kind documentation
/kind failing-test
/kind feature
/kind flake
/kind bug

What this PR does / why we need it:

It adds feature gates to kube-proxy. Some features (like ServiceTopology) won't work properly without these settings in kube-proxy.

Which issue(s) this PR fixes:

Fixes #6850

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

No

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[k8s-ci-robot]

Hi @maciejaszek. Thanks for your PR.

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[floryut]

/ok-to-test
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: floryut, maciejaszek

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[LuckySB]

/lgtm