WIP: 5100: Adding retroactive KEP for WinDSR and WinOverlay

[marosset]

• One-line PR description: Retroactive KEP for WinDSR and WinOverlay

• Issue link: Retroactive KEP for WinDSR and WinOverlay feature-gates #5100

• Other comments:

/milestone v1.33
/sig windows network
/wip

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: marosset
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@marosset: 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-enhancements-test	5867720	link	true	/test pull-enhancements-test
pull-enhancements-verify	5867720	link	true	/test pull-enhancements-verify

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