Revert "SEBA-357 remove OLTDevice.uplink_port"

This reverts commit b32c5841731b844597465fb92810c82e86337021.

Change-Id: Ie17a784e703e3a204829bb7a208e6924d20e520f
diff --git a/VERSION b/VERSION
index a39c0b7..8dbb0f2 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.1.11
+2.1.10