Added ssh port to .gitreview config

Change-Id: I080a90cb67005967e6b622a3369bcfbf0555083a
diff --git a/.gitreview b/.gitreview
index 17a878d..852600d 100644
--- a/.gitreview
+++ b/.gitreview
@@ -1,5 +1,6 @@
 [gerrit]
 host=gerrit.onosproject.org
+port=29418
 project=vtn.git
 defaultremote=origin
 defaultbranch=master