[VOL-4292] OpenOLT Adapter changes for gRPC migration

Change-Id: I5af2125f2c2f53ffc78c474a94314bba408f8bae
diff --git a/go.mod b/go.mod
index 8abdab8..714b3ea 100644
--- a/go.mod
+++ b/go.mod
@@ -2,13 +2,19 @@
 
 go 1.16
 
+replace (
+	github.com/coreos/bbolt v1.3.4 => go.etcd.io/bbolt v1.3.4
+	go.etcd.io/bbolt v1.3.4 => github.com/coreos/bbolt v1.3.4
+	google.golang.org/grpc => google.golang.org/grpc v1.25.1
+)
+
 require (
 	github.com/cenkalti/backoff/v3 v3.1.1
-	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/v6 v6.0.1
-	github.com/opencord/voltha-protos/v4 v4.2.0
-	go.etcd.io/etcd v0.0.0-20190930204107-236ac2a90522
-	google.golang.org/grpc v1.25.1
+	github.com/gogo/protobuf v1.3.2
+	github.com/golang/protobuf v1.5.2
+	github.com/grpc-ecosystem/go-grpc-middleware v1.3.0
+	github.com/opencord/voltha-lib-go/v7 v7.0.0
+	github.com/opencord/voltha-protos/v5 v5.0.0
+	go.etcd.io/etcd v3.3.25+incompatible
+	google.golang.org/grpc v1.41.0
 )