[OC]: point to proper namespace and branch

docker/Dockerfile.eNB.rhel7.oc4-4

docker/Dockerfile.eNB.rhel8.2.oc4-4

docker/Dockerfile.gNB.rhel7.oc4-4

docker/Dockerfile.gNB.rhel8.2.oc4-4

docker/Dockerfile.lteUE.rhel8.2.oc4-4

docker/Dockerfile.nrUE.rhel8.2.oc4-4

openshift/oai-enb-build-config.yml

openshift/oai-enb-image-stream.yml

openshift/oai-enb-rh8-build-config.yml

openshift/oai-enb-rh8-image-stream.yml

openshift/oai-gnb-build-config.yml

openshift/oai-gnb-image-stream.yml

openshift/oai-gnb-rh8-build-config.yml

openshift/oai-gnb-rh8-image-stream.yml

openshift/oai-lte-ue-rh8-build-config.yml

openshift/oai-lte-ue-rh8-image-stream.yml

openshift/oai-nr-ue-rh8-build-config.yml

openshift/oai-nr-ue-rh8-image-stream.yml

openshift/oai-ran-build-config.yml

openshift/oai-ran-image-stream.yml