Allowing driver loaders to refer to classes loaded by others.

Change-Id: Ife4e50758620d4c052a7bb81740d9b9305647317
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 ba5bd69..f9f2532 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
@@ -20,7 +20,7 @@
 /**
  * Service for managing drivers and driver behaviour implementations.
  */
-public interface DriverAdminService extends DriverService {
+public interface DriverAdminService extends DriverService, BehaviourClassResolver {
 
     /**
      * Returns the set of driver providers currently registered.