Add quotes around policy name and rule

Policy name or rule may contain specific
symbols which can lead to sls rendering failure.

PROD-34318

Change-Id: Ia2edafe9bf84670f39683d91a5548aafbedce003
diff --git a/nova/controller.sls b/nova/controller.sls
index 7654536..a25c1d6 100644
--- a/nova/controller.sls
+++ b/nova/controller.sls
@@ -312,8 +312,8 @@
 nova_keystone_rule_{{ name }}_present:
   keystone_policy.rule_present:
   - path: /etc/nova/{{ controller.get('oslo_policy', {}).get('policy_file', 'policy.json') }}
-  - name: {{ name }}
-  - rule: {{ rule }}
+  - name: '{{ name }}'
+  - rule: '{{ rule }}'
   - require:
     - pkg: nova_controller_packages
     {%- if controller.version not in ['liberty', 'mitaka', 'newton'] %}
@@ -325,7 +325,7 @@
 nova_keystone_rule_{{ name }}_absent:
   keystone_policy.rule_absent:
   - path: /etc/nova/{{ controller.get('oslo_policy', {}).get('policy_file', 'policy.json') }}
-  - name: {{ name }}
+  - name: '{{ name }}'
   - require:
     - pkg: nova_controller_packages
     {%- if controller.version not in ['liberty', 'mitaka', 'newton'] %}