Upgrading app to ONOS 1.13

Change-Id: Ib6d780f7b3db7f39ed996ecc5d5b44e67fa067d1
diff --git a/src/main/java/org/opencord/aaa/StateMachine.java b/src/main/java/org/opencord/aaa/StateMachine.java
index 6795c43..a4b46aa 100644
--- a/src/main/java/org/opencord/aaa/StateMachine.java
+++ b/src/main/java/org/opencord/aaa/StateMachine.java
@@ -17,17 +17,14 @@
 
 package org.opencord.aaa;
 
-import java.util.Map;
-
+import com.google.common.collect.Maps;
 import org.onlab.packet.MacAddress;
 import org.onlab.packet.VlanId;
 import org.onosproject.net.ConnectPoint;
-
 import org.opencord.olt.AccessDeviceService;
-
 import org.slf4j.Logger;
 
-import com.google.common.collect.Maps;
+import java.util.Map;
 
 import static org.slf4j.LoggerFactory.getLogger;