Fix version file, use 1.7.0.1 b/c 1.7.0 already released

Change-Id: I77653a4649ec3335fe915c8b440cf0d8ac5bd8cc
diff --git a/voltha/VERSION b/voltha/VERSION
index d72f262..3c28b26 100644
--- a/voltha/VERSION
+++ b/voltha/VERSION
@@ -1 +1 @@
-2.0.0-dev
+1.7.0.1