Gather facts for openstack_openrc role

The openstack_openrc role need to make use of variables
only available if facts are gathered.

In this patch we ensure that facts are gathered for both
times the role is executed.

Change-Id: I327e7e127d4f9022d3fe0643122df37828e9f17d

playbooks/os-keystone-install.yml

@@ -21,7 +21,7 @@
 # clouds.yaml file is useless until keystone is in place.
 - name: Implement openrc/clouds.yaml on the designated service host
   hosts: "{{ openstack_service_setup_host | default('localhost') }}"
-  gather_facts: no
+  gather_facts: "{{ osa_gather_facts | default(True) }}"
   become: yes
   tags:
     - openrc

playbooks/utility-install.yml

@@ -16,6 +16,7 @@
 - name: Setup the utility location(s)
   hosts: utility_all
   user: root
+  gather_facts: "{{ osa_gather_facts | default(True) }}"
   environment: "{{ deployment_environment_variables | default({}) }}"
   vars_files:
     - "defaults/{{ install_method }}_install.yml"