Fixed netcfg cli completers

Change-Id: Ia41990fb62a0f904d505c06fa889dae712c9b554
(cherry picked from commit 8c241fe8329134844b6b289779ee76dacebac81d)
diff --git a/cli/src/main/java/org/onosproject/cli/cfg/NetworkConfigCommand.java b/cli/src/main/java/org/onosproject/cli/cfg/NetworkConfigCommand.java
index fad93ef..96643fd 100644
--- a/cli/src/main/java/org/onosproject/cli/cfg/NetworkConfigCommand.java
+++ b/cli/src/main/java/org/onosproject/cli/cfg/NetworkConfigCommand.java
@@ -44,12 +44,12 @@
 
     @Argument(index = 0, name = "subjectClassKey", description = "Subject class key",
             required = false, multiValued = false)
-    @Completion(ComponentConfigCommandCompleter.class)
+    @Completion(SubjectClassKeyCompleter.class)
     String subjectClassKey = null;
 
     @Argument(index = 1, name = "subjectKey", description = "Subject key",
             required = false, multiValued = false)
-    @Completion(ComponentNameCompleter.class)
+    @Completion(SubjectKeyCompleter.class)
     String subjectKey = null;
 
     @Argument(index = 2, name = "configKey", description = "Config key",