mcast app changes for karaf 4.2.1 CLI

Change-Id: Ieac2667bf0c0d6c5492ec96de124e9ab211d27ed
diff --git a/apps/mcast/cli/BUILD b/apps/mcast/cli/BUILD
index e692c4c..9a9d616 100644
--- a/apps/mcast/cli/BUILD
+++ b/apps/mcast/cli/BUILD
@@ -4,6 +4,6 @@
 ]
 
 osgi_jar(
-    import_packages = "*,org.onosproject.cli.net",
+    karaf_command_packages = ["org.onosproject.mcast.cli"],
     deps = COMPILE_DEPS,
 )