Fix VPLS bundle error while using buck run

VPLS app might not be actived when we use `buck run onos` command.
Error message shows it can't find onos-app-routing bundle.
Add `included_bundles` to settings can fix this problem.

Change-Id: I038a4a45ba609e5bcb8cecef7ee5dbd5d7ab6684
diff --git a/apps/vpls/BUCK b/apps/vpls/BUCK
index ffe8b35..0cdc7da 100644
--- a/apps/vpls/BUCK
+++ b/apps/vpls/BUCK
@@ -10,6 +10,12 @@
     '//apps/routing:onos-apps-routing',
 ]
 
+BUNDLES = [
+    '//apps/vpls:onos-apps-vpls',
+    '//apps/routing-api:onos-apps-routing-api',
+    '//apps/routing:onos-apps-routing',
+]
+
 TEST_DEPS = [
     '//lib:TEST_ADAPTERS',
 ]
@@ -23,5 +29,6 @@
     title = 'VLAN L2 Broadcast Network App',
     category = 'Traffic Steering',
     url = 'http://onosproject.org',
+    included_bundles = BUNDLES,
     description = 'Application to create L2 broadcast network using VLAN.',
 )