TT#177600 Move ngcpcfg specific configuration under /etc/ngcp-ngcpcfg

The configuration files specific to the ngcpcfg tool should not be
mixed with the site specific configuration, as that's rather confusing,
more so when the actual ngcpcfg configuration contains references to the
location of the ngcp-config dir itself, which makes it self-referential.

Change-Id: I25bee17e69e9c302d40b1bb55f73a1e88e505a8d

templates/130_filesys-ngcp.yaml.tt2

@@ -57,6 +57,9 @@ file:
     contains: []
 
   /etc/ngcp-config/ngcpcfg.cfg:
+    exists: false
+
+  /etc/ngcp-ngcpcfg/ngcpcfg.cfg:
     exists: true
     mode: "0644"
     owner: root