firmitas: ensure the contents of the slurped file is stored in var

Signed-off-by: David Kirwan <davidkirwanirl@gmail.com>

roles/openshift-apps/firmitas/templates/secret-configuration.yml

@@ -5,6 +5,6 @@ metadata:
   namespace: "{{ firmitas_namespace }}"
 data:
   myconfig.py:
-    "{{ firmitas_myconfig_py_file }}"
+    "{{ firmitas_myconfig_py_file['content'] }}"
   certlist.yml:
-    "{{ firmitas_certlist_yml_file }}"
+    "{{ firmitas_certlist_yml_file['content'] }}"