Stub Makefile to call Makefile in python subdir

add `test` target that checks that the container builds

Change-Id: I37277d75e6797107b1df106ea1eb744c67897bb9
diff --git a/.gitreview b/.gitreview
new file mode 100644
index 0000000..7de6373
--- /dev/null
+++ b/.gitreview
@@ -0,0 +1,5 @@
+[gerrit]
+host=gerrit.opencord.org
+port=29418
+project=voltha-openonu-adapter.git
+defaultremote=origin