[ONOS-4945] PCE Json fix

Change-Id: I701ed1044c603ea60becf8ba606098e4154a7733
diff --git a/providers/bgpcep/app/app.xml b/providers/bgpcep/app/app.xml
index 0854ce0..6e24243 100644
--- a/providers/bgpcep/app/app.xml
+++ b/providers/bgpcep/app/app.xml
@@ -34,4 +34,5 @@
     <artifact>mvn:${project.groupId}/onos-bgpcep-provider-flow/${project.version}</artifact>
     <artifact>mvn:${project.groupId}/onos-app-pce/${project.version}</artifact>
     <artifact>mvn:${project.groupId}/onos-app-pceweb/${project.version}</artifact>
+    <artifact>mvn:${project.groupId}/onos-app-pcerest/${project.version}</artifact>
 </app>