Follow ONOS naming convention in PIM application

Change-Id: Id553a89630b44eafc791e54e54b043fb4182e324
diff --git a/apps/pim/src/main/java/org/onosproject/pim/cli/PimInterfacesListCommand.java b/apps/pim/src/main/java/org/onosproject/pim/cli/PimInterfacesListCommand.java
index 64dd207..130e81e 100644
--- a/apps/pim/src/main/java/org/onosproject/pim/cli/PimInterfacesListCommand.java
+++ b/apps/pim/src/main/java/org/onosproject/pim/cli/PimInterfacesListCommand.java
@@ -18,8 +18,8 @@
 
 import org.apache.karaf.shell.commands.Command;
 import org.onosproject.cli.AbstractShellCommand;
-import org.onosproject.pim.impl.PIMInterface;
-import org.onosproject.pim.impl.PIMInterfaceService;
+import org.onosproject.pim.impl.PimInterface;
+import org.onosproject.pim.impl.PimInterfaceService;
 
 import java.util.Set;
 
@@ -35,9 +35,9 @@
 
     @Override
     protected void execute() {
-        PIMInterfaceService interfaceService = get(PIMInterfaceService.class);
+        PimInterfaceService interfaceService = get(PimInterfaceService.class);
 
-        Set<PIMInterface> interfaces = interfaceService.getPimInterfaces();
+        Set<PimInterface> interfaces = interfaceService.getPimInterfaces();
 
         interfaces.forEach(pimIntf -> {
             print(FORMAT, pimIntf.getInterface().name(),