[VOL-5245] -- post-release patch

VERSION
go.mod
go.sum
vendor/modules.txt
------------------
  o Update voltha-protos (version:v5.5.0) for branch=master.

Change-Id: I4641543d18918ff42cd579435e918828df2cf1d5
diff --git a/vendor/modules.txt b/vendor/modules.txt
index ea83bcd..5e45f8f 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -245,7 +245,7 @@
 github.com/modern-go/reflect2
 # github.com/onsi/gomega v1.14.0
 ## explicit
-# github.com/opencord/voltha-protos/v5 v5.4.10
+# github.com/opencord/voltha-protos/v5 v5.5.0
 ## explicit
 github.com/opencord/voltha-protos/v5/go/adapter_service
 github.com/opencord/voltha-protos/v5/go/common