repo:voltha-openolt-adapter - post release activity.

VERISON
-------
  o Update VERISON to 4.5.0-dev to avoid conflicts with branch=release.

.gitreview
==========
  o Assign defaultbranch=master.

Change-Id: I57458d40c3cc6080d85bac59c226756acc9b3a3c
diff --git a/VERSION b/VERSION
index 793ea8a..63bdbfa 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.4.11
+4.5.0-dev