[VOL-5246] - branch and release bbsim

go.mod
------
 o Update package voltha-protos to v5.4.11
 o Update package device-management-interface to v1.16.0

go.sum
cmd/
internal/
vendor/
---------
  o Update copyright notice
  o Invoke make mod-update to refresh dependencies.

makefiles/golang/mod-update.mk
------------------------------
  o Target mod-tidy must also pay attention to LOCAL_FIX_PERMS=1
    else go.sum cannot be re-written in local-dev-mode.

Change-Id: I7f565e6ce72273b239ad7b63c5da387c18f30bfe
diff --git a/go.mod b/go.mod
index fe35607..8289cf7 100644
--- a/go.mod
+++ b/go.mod
@@ -24,7 +24,7 @@
 	github.com/opencord/cordctl v0.0.0-20190909161711-01e9c1f04bf4
 	github.com/opencord/device-management-interface v1.4.0
 	github.com/opencord/omci-lib-go/v2 v2.2.3
-	github.com/opencord/voltha-protos/v5 v5.4.10
+	github.com/opencord/voltha-protos/v5 v5.4.11
 	github.com/pkg/errors v0.8.1 // indirect
 	github.com/sirupsen/logrus v1.4.2
 	github.com/stretchr/testify v1.5.1