Update CSIT tests 161211 -> 161218

- update of CSIT operational branch to be used for VPP-patch test

Change-Id: I2942502803e1fc6edaf35fc08dee4e7848594f96
Signed-off-by: Jan Gelety <jgelety@cisco.com>
diff --git a/build-root/scripts/csit-test-branch b/build-root/scripts/csit-test-branch
index 9ea87a7..f4e6f1a 100755
--- a/build-root/scripts/csit-test-branch
+++ b/build-root/scripts/csit-test-branch
@@ -1,2 +1,2 @@
 #!/bin/sh
-echo oper-161211
+echo oper-161218