Fix openshift_master_ips and openshift_master_public_ips resolution

- don't use set_fact on localhost for openshift_master_ips and
  openshift_master_public_ips
  - we are only using it for the configure play
  - move definition to vars section of configure play
  - otherwise we'd have to set openshift_master_ips and
    openshift_master_public_ips from hostvars['localhost'] and since we aren't
    refrerencing it anywhere else, might as well just do it in vars instead of
    set_fact on locahost.

playbooks/gce/openshift-node/config.yml

@@ -53,7 +53,6 @@
   roles:
   - openshift_register_nodes
   tasks:
-  tasks:
   - name: Create local temp directory for syncing certs
     local_action: command /usr/bin/mktemp -d /tmp/openshift-ansible-XXXXXXX
     register: mktemp
@@ -69,7 +68,7 @@
 #
 - name: Configure instances
   hosts: oo_nodes_to_config
-  vars_files:
+vars_files:
   - vars.yml
   vars:
     openshift_master_group: tag_env-host-type-{{ oo_env }}-openshift-master