[WIP] Upgrade ONOS to karaf version 4.2.1

Change-Id: I7cd40c995bdf1c80f94b1895fb3344e32404c7fa
diff --git a/providers/openflow/packet/src/main/java/org/onosproject/provider/of/packet/impl/OpenFlowPacketProvider.java b/providers/openflow/packet/src/main/java/org/onosproject/provider/of/packet/impl/OpenFlowPacketProvider.java
index c5e2a87..a363339 100644
--- a/providers/openflow/packet/src/main/java/org/onosproject/provider/of/packet/impl/OpenFlowPacketProvider.java
+++ b/providers/openflow/packet/src/main/java/org/onosproject/provider/of/packet/impl/OpenFlowPacketProvider.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.provider.of.packet.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.PortNumber;
@@ -62,10 +62,10 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenFlowController controller;
 
     private PacketProviderService providerService;