Enhancing driver subsystem to support asynchronous event notifications.

Change-Id: I6850aae4f660b8328378da98460529eb58531732
diff --git a/core/api/src/main/java/org/onosproject/net/driver/DriverAdminService.java b/core/api/src/main/java/org/onosproject/net/driver/DriverAdminService.java
index 6263940..90b3d28 100644
--- a/core/api/src/main/java/org/onosproject/net/driver/DriverAdminService.java
+++ b/core/api/src/main/java/org/onosproject/net/driver/DriverAdminService.java
@@ -20,8 +20,7 @@
 /**
  * Service for managing drivers and driver behaviour implementations.
  */
-public interface DriverAdminService
-        extends DriverRegistry, BehaviourClassResolver {
+public interface DriverAdminService extends DriverRegistry, BehaviourClassResolver {
 
     /**
      * Returns the set of driver providers currently registered.