OpenOnuAdapter: Backport SW-Upgrade tests

Change-Id: Ice6c804f60722ae70cb09b358db22f43ea54a30c
diff --git a/VERSION b/VERSION
index 6c4bbe4..36b69a6 100755
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.8.21
+2.8.22