[3.7] UPSTREAM: 49128: add svc and netpol to discovery

[fabianofranz]

Fixes #17411 and https://bugzilla.redhat.com/show_bug.cgi?id=1515878

Add svc and netpol to discovery, picking kubernetes/kubernetes@8232778 into the enterprise-3.7 branch.

PTAL @deads2k @smarterclayton

[mfojtik]

/lgtm

[openshift-merge-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: fabianofranz, mfojtik

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[openshift-merge-robot]

/test all [submit-queue is verifying that this PR is safe to merge]

[openshift-ci-robot]

@fabianofranz: The following tests failed, say /retest to rerun them all:

Test name	Commit	Details	Rerun command
ci/openshift-jenkins/extended_conformance_install_update	cb413eb	link	/test extended_conformance_install_update
ci/openshift-jenkins/extended_conformance_gce	cb413eb	link	/test extended_conformance_gce

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[openshift-merge-robot]

Automatic merge from submit-queue.