Add link for OpenContrail 4.0 -> 4.1

Related: PROD-24998 (PROD:24998)

Change-Id: I95229b2f59cb64ac710287e939714507fb651bbc
diff --git a/kubernetes/files/opencontrail/4.1 b/kubernetes/files/opencontrail/4.1
new file mode 120000
index 0000000..0c16b90
--- /dev/null
+++ b/kubernetes/files/opencontrail/4.1
@@ -0,0 +1 @@
+4.0/
\ No newline at end of file