SDFAB-998 Move omec-user-plane from aether-helm-chart to sdfabric-helm-chart

It is renamed to bess-upf.
The license is also updated to Apache 2.0.
We also remove omec-upf-cni which is no longer in use.

Change-Id: Ie9ce877c13203a76bf90d24918734ded33587157
diff --git a/bess-upf/templates/bin/_bessd-poststart.sh.tpl b/bess-upf/templates/bin/_bessd-poststart.sh.tpl
new file mode 100644
index 0000000..642306c
--- /dev/null
+++ b/bess-upf/templates/bin/_bessd-poststart.sh.tpl
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# Copyright 2020-present Open Networking Foundation
+#
+# SPDX-License-Identifier: Apache-2.0
+
+set -ex
+
+until bessctl run /opt/bess/bessctl/conf/up4; do
+    sleep 2;
+done;