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
(cherry picked from commit bcd6e12d2a)

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