Description of problem:
The fluentd-init container image isn't updated to the new image during the upgrade.

Version-Release number of selected component (if applicable):
clusterlogging.4.5.0-202008100413.p0  ->  clusterlogging.4.6.0-202008102017.p0


How Reproducible:
Always

Steps to Reproduce:
1) Deploy cluster logging 4.5
2) Deploy 4.6 catalog source service
3) Upgrade CLO and EO to 4.6
4) Check the fluentd-init container image

Actual Result:
The fluentd-init image is a 4.5 image "quay.io/openshift-qe-optional-operators/ose-logging-fluentd:xxxx"

$ oc get ds fluentd -o json  | jq '.spec.template.spec'
"containers": [
    {
      ......
      ......
      "image": "registry.redhat.io/openshift4/ose-logging-fluentd@sha256:1656abbfa048c6248feb2ea0ce4b5a6b0ade00e88700643a0019285481341ea4",
      "imagePullPolicy": "IfNotPresent",
      "name": "fluentd",
      ......
      ......
    }
  ],
  "dnsPolicy": "ClusterFirst",
  "initContainers": [
    {
      "command": [
        "./wait_for_es_version.sh",
        "6",
        "https://elasticsearch.openshift-logging.svc:9200"
      ],
      "image": "quay.io/openshift-qe-optional-operators/ose-logging-fluentd@sha256:1e600cb3f3bab64f1736e1fd7761e3d97b4f2a52ed6aa92c97f26747f9629ac8",
      "imagePullPolicy": "IfNotPresent",
      "name": "fluentd-init"
      ..........
      .........
      }
   ]

Expected Result:
he fluentd-init image should be registry.redhat.io/openshift4/ose-logging-fluentd@xxxxxx