config: change format of supplying auditlog config

this is done to be able to add auditlog filters

Author: yfoelling

defaults/main.yml

@@ -158,6 +158,7 @@ mongo_operationprofiling:
   mode: "{{ mongodb_operation_profiling_mode }}"
 
 mongo_auditlog:
-  destination: file
-  format: "{{ mongodb_auditlog_format }}"
-  path: "{{ mongodb_auditlog_path }}"
+  destination: {{ mongodb_auditlog_destination }}
+  format: {{ mongodb_auditlog_format }}
+  path: {{ mongodb_auditlog_path }}
+  filter: {{ mongodb_auditlog_filter }}