checkstyle rule to check copyrights

Change-Id: Ia9bab40b5fe64fca539058a4316371f7acc0f387
diff --git a/drivers/fujitsu/src/main/java/org/onosproject/drivers/fujitsu/cli/VoltGetOnuStatsCommand.java b/drivers/fujitsu/src/main/java/org/onosproject/drivers/fujitsu/cli/VoltGetOnuStatsCommand.java
index 0888af1..77ad95d 100644
--- a/drivers/fujitsu/src/main/java/org/onosproject/drivers/fujitsu/cli/VoltGetOnuStatsCommand.java
+++ b/drivers/fujitsu/src/main/java/org/onosproject/drivers/fujitsu/cli/VoltGetOnuStatsCommand.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-present Open tworking Laboratory
+ * Copyright 2016-present Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.