[VOL-4173] Multi UNI changes in OLT adapter
- FindAllTpInstances method will read right KV store path
- Do not send US createTrafficSchedulers requests to the agent if the related AllocID is already created for other UNI ports of the ONU
- Addition of isAllocUsedByAnotherUNI control

Change-Id: I3a35220767ffc6792ac354e445dd960a946a5690
diff --git a/go.mod b/go.mod
index 317c90a..f95eaf8 100644
--- a/go.mod
+++ b/go.mod
@@ -7,7 +7,7 @@
 	github.com/gogo/protobuf v1.3.1
 	github.com/golang/protobuf v1.3.2
 	github.com/grpc-ecosystem/go-grpc-middleware v1.0.1-0.20190118093823-f849b5445de4
-	github.com/opencord/voltha-lib-go/v4 v4.3.1
+	github.com/opencord/voltha-lib-go/v4 v4.3.5
 	github.com/opencord/voltha-protos/v4 v4.1.8
 	go.etcd.io/etcd v0.0.0-20190930204107-236ac2a90522
 	google.golang.org/grpc v1.25.1