Update CSIT tests 170518 -> 170529

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

Change-Id: I66357690f41e23dd1b924cc50a951a6c3696e071
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 e6861bb..7c36df7 100755
--- a/build-root/scripts/csit-test-branch
+++ b/build-root/scripts/csit-test-branch
@@ -1,2 +1,2 @@
 #!/bin/sh
-echo oper-170518
+echo oper-170529