(VOL-4972) enabling pon and onu object get apis in bbsim

Change-Id: I81932e4a8a1370ce83624f1deaf385c2809d568c
diff --git a/go.mod b/go.mod
index 533c14e..0452ffb 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 v5.2.3
+	github.com/opencord/voltha-protos/v5 v5.4.6
 	github.com/pkg/errors v0.8.1 // indirect
 	github.com/sirupsen/logrus v1.4.2
 	github.com/stretchr/testify v1.5.1