TT#59361 Ensure systemd late generator is not in use

Our current policy is: all services must have .service files
(better Type=notify) to be fully integrated into ngcpcfg preset.

We need to be sure newly added services will not use systemd 'generator.late'
for automatic .service files generation.

Change-Id: Id199020be6c30f5f954496fe02c6b2fe125365fb

templates/500_init-daemons-dabian.yaml.tt2

@@ -1,3 +1,8 @@
+file:
+  /run/systemd/generator.late:
+    exists: false
+    contains: []
+
 service:
 
   acpid.service: