User Story:
As an OpenShift Engineer I want to create a feature gate to support the CCM NLB+SG feature so when creating an ingress service so components and users can configure the default router to be created with feature requirement.

Description:
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Acceptance Criteria:
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Other Information:
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issue created by splat-bot

created from thread: https://redhat-internal.slack.com/archives/G012C6LKVM2/p1747166302402069