TT#4815 Adjust Debian package description

Make lintian happy about:

| W: ngcp-panel-csc: description-too-long
| W: ngcp-panel-csc: description-starts-with-leading-spaces

Change-Id: I1bdf1ac32dee6e2f360c7b7dddcc34f74078ecf3

debian/control

@@ -12,6 +12,6 @@ Package: ngcp-panel-csc
 Architecture: all
 Depends:
  ${misc:Depends},
-Description: ExtJS based frontend for endusers to configure their accounts on the Sipwise NGCP
+Description: ExtJS based frontend for endusers to configure accounts on NGCP
  The CSC framework is used by endusers to configure their accounts on the
  Sipwise NGCP.