Moved service PI classes/interfaces to appropriate package

Change-Id: I44a4aba848fd758a78a28eb484b7f579e3f22d08
diff --git a/apps/p4-tutorial/icmpdropper/src/main/java/org/onosproject/p4tutorial/icmpdropper/IcmpDropper.java b/apps/p4-tutorial/icmpdropper/src/main/java/org/onosproject/p4tutorial/icmpdropper/IcmpDropper.java
index cddd23b..e1f54f6 100644
--- a/apps/p4-tutorial/icmpdropper/src/main/java/org/onosproject/p4tutorial/icmpdropper/IcmpDropper.java
+++ b/apps/p4-tutorial/icmpdropper/src/main/java/org/onosproject/p4tutorial/icmpdropper/IcmpDropper.java
@@ -39,7 +39,7 @@
 import org.onosproject.net.pi.runtime.PiAction;
 import org.onosproject.net.pi.model.PiActionId;
 import org.onosproject.net.pi.model.PiMatchFieldId;
-import org.onosproject.net.pi.runtime.PiPipeconfService;
+import org.onosproject.net.pi.service.PiPipeconfService;
 import org.onosproject.net.pi.model.PiTableId;
 import org.onosproject.p4tutorial.pipeconf.PipeconfFactory;
 import org.slf4j.Logger;