Using 2.2-latest onos snapshot of olt and snapshot of dhcpl2relay

Change-Id: I8ecbb3bc8c47b11929975fb6f716404e87edf7df
diff --git a/VERSION b/VERSION
index 561ad33..0211f69 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.1.6
+4.1.6-dev