router-metrics-tls secret is missing when deploying using playbook

Issue

• When a customer openshift_hosted_routers and deploys the routers using ansible-playbook -i <ansible inventory> \
/usr/share/ansible/openshift-ansible/playbooks/openshift-hosted/deploy_router.yml

• The routers won't work because the secret router-metrics-tls secret is missing. If openshift_hosted_routers is not defined oc_adm_router works as expected creating the secret.