[VOL-4290] Voltha go library updates for gRPC migration

Change-Id: I1aa2774beb6b7ed7419bc45aeb53fcae8a8ecda0
diff --git a/vendor/go.uber.org/zap/.gitignore b/vendor/go.uber.org/zap/.gitignore
index 08fbde6..da9d9d0 100644
--- a/vendor/go.uber.org/zap/.gitignore
+++ b/vendor/go.uber.org/zap/.gitignore
@@ -26,3 +26,7 @@
 *.pprof
 *.out
 *.log
+
+/bin
+cover.out
+cover.html