VOL-5244 - branch and release voltha-protos.

VERSION
-------
  o Post release increment VERSION to 5.5.0-dev to avoid conflicts
    with v5.4.11 on the release branch.

Change-Id: Ic53fd926cd5c0c8398ccbd0bfd39db9430920b4d
diff --git a/VERSION b/VERSION
index ee9662e..a49cad2 100755
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-5.4.10
+5.5.0-dev