Insert the description of the change.

Change-Id: Id8ada2a8b71426788ebc6bd8a8bb684defe8721a
diff --git a/.gitignore b/.gitignore
index 0b66ada..2843ab3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -36,6 +36,7 @@
 python/**/*.desc
 protos/**/*.pb.go
 protos/**/*.desc
+protos/voltha.pb
 
 # Editors
 *.bak