[VOL-3930] Upgrading to latest voltha-lib-go

Change-Id: Ie7213bdbabf40cc70b32c8135a3383de612135a1
diff --git a/go.mod b/go.mod
index db79a5a..fe69f0f 100644
--- a/go.mod
+++ b/go.mod
@@ -10,7 +10,7 @@
 	github.com/google/gopacket v1.1.17
 	github.com/looplab/fsm v0.1.0
 	github.com/opencord/omci-lib-go v0.16.2
-	github.com/opencord/voltha-lib-go/v4 v4.0.10
+	github.com/opencord/voltha-lib-go/v4 v4.1.1
 	github.com/opencord/voltha-protos/v4 v4.0.13
 	github.com/stretchr/testify v1.6.1
 	google.golang.org/grpc v1.25.1 // indirect