Description of problem:

When installing a LokiStack in the same namespace as netobserv, and not providing an explicit namespace in the config (it's supposed to fallback to netobserv's namespace), connectivity to Loki is broken with a "no such host" error:

dial tcp: lookup loki-gateway-http.svc on 172.30.0.10:53: no such host

Steps to Reproduce:

1. Install netobserv
2. Install loki operator + LokiStack in namespace "netobserv"
3. Configure FlowCollector with:

    mode: LokiStack
    lokiStack:
      name: loki

(do not set a namespace)

Actual results:

dial tcp: lookup loki-gateway-http.svc on 172.30.0.10:53: no such host

Expected results:

no error