Changing the flowsChunkSize to stay below 64KB in TT workflow at scale

Change-Id: I507bd68f8ff6d61c85503538d186673cd8094591
(cherry picked from commit e8d2e9ce7874eb38855eca8d7c31d48b4bb842c7)
diff --git a/.gitreview b/.gitreview
index c04b89f..1f11749 100644
--- a/.gitreview
+++ b/.gitreview
@@ -3,3 +3,4 @@
 port=29418
 project=ofagent-go.git
 defaultremote=origin
+defaultbranch=voltha-2.5