[WIP] Upgrade ONOS to karaf version 4.2.1

Change-Id: I7cd40c995bdf1c80f94b1895fb3344e32404c7fa
diff --git a/drivers/microsemi/ea1000/src/main/java/org/onosproject/drivers/microsemi/NetconfConfigGetter.java b/drivers/microsemi/ea1000/src/main/java/org/onosproject/drivers/microsemi/NetconfConfigGetter.java
index 039b760..7d937d0 100644
--- a/drivers/microsemi/ea1000/src/main/java/org/onosproject/drivers/microsemi/NetconfConfigGetter.java
+++ b/drivers/microsemi/ea1000/src/main/java/org/onosproject/drivers/microsemi/NetconfConfigGetter.java
@@ -19,8 +19,8 @@
 import static org.onosproject.netconf.DatastoreId.datastore;
 import static org.slf4j.LoggerFactory.getLogger;
 
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.behaviour.ConfigGetter;
 import org.onosproject.net.driver.AbstractHandlerBehaviour;
@@ -42,7 +42,7 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
     private PacketProcessor testProcessor;