Fix completers for CFM app CLI

Change-Id: Ib558d5fa26b8b99f0529cabac1848f74ca99004f
diff --git a/cli/src/main/java/org/onosproject/cli/PlaceholderCompleter.java b/cli/src/main/java/org/onosproject/cli/PlaceholderCompleter.java
index 537aa28..30ef054 100644
--- a/cli/src/main/java/org/onosproject/cli/PlaceholderCompleter.java
+++ b/cli/src/main/java/org/onosproject/cli/PlaceholderCompleter.java
@@ -16,6 +16,7 @@
 
 package org.onosproject.cli;
 
+import org.apache.karaf.shell.api.action.lifecycle.Service;
 import org.apache.karaf.shell.api.console.CommandLine;
 import org.apache.karaf.shell.api.console.Session;
 import org.apache.karaf.shell.support.completers.StringsCompleter;
@@ -27,6 +28,7 @@
  * A completer that can be used as a placeholder for arguments that don't
  * need/want completers.
  */
+@Service
 public class PlaceholderCompleter extends AbstractCompleter {
 
     @Override