go.mod updated with latest voltha-protos version before release 2.12

Change-Id: Icba223a8a3a579b46f78480b25c2bb4bc7c483d7
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 3b508e0..45b15c4 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -156,7 +156,7 @@
 github.com/opencord/voltha-lib-go/v7/pkg/probe
 github.com/opencord/voltha-lib-go/v7/pkg/techprofile
 github.com/opencord/voltha-lib-go/v7/pkg/version
-# github.com/opencord/voltha-protos/v5 v5.3.8
+# github.com/opencord/voltha-protos/v5 v5.4.6
 ## explicit
 github.com/opencord/voltha-protos/v5/go/adapter_service
 github.com/opencord/voltha-protos/v5/go/common
@@ -172,6 +172,8 @@
 github.com/opencord/voltha-protos/v5/go/openflow_13
 github.com/opencord/voltha-protos/v5/go/openolt
 github.com/opencord/voltha-protos/v5/go/tech_profile
+github.com/opencord/voltha-protos/v5/go/voip_system_profile
+github.com/opencord/voltha-protos/v5/go/voip_user_profile
 github.com/opencord/voltha-protos/v5/go/voltha
 # github.com/opentracing/opentracing-go v1.2.0
 github.com/opentracing/opentracing-go