P4runtime test utility app

Used for quick testing of P4Runtime with real devices.
To be removed before release.

Change-Id: Ieca17493e4b012ef748709014b62ebe54ba76dce
diff --git a/protocols/p4runtime/ctl/src/main/java/org/onosproject/p4runtime/ctl/P4RuntimeControllerImpl.java b/protocols/p4runtime/ctl/src/main/java/org/onosproject/p4runtime/ctl/P4RuntimeControllerImpl.java
index ca78652..d134a22 100644
--- a/protocols/p4runtime/ctl/src/main/java/org/onosproject/p4runtime/ctl/P4RuntimeControllerImpl.java
+++ b/protocols/p4runtime/ctl/src/main/java/org/onosproject/p4runtime/ctl/P4RuntimeControllerImpl.java
@@ -63,7 +63,7 @@
     private final Map<DeviceId, ReadWriteLock> deviceLocks = Maps.newConcurrentMap();
 
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
-    protected GrpcController grpcController;
+    public GrpcController grpcController;
 
     @Activate
     public void activate() {