VOL-3978 - update to go 1.16.3

Change-Id: Ic58d4344cc98c8f4ce0a7b6a0bb538605750afe9
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 8adf168..030cfa9 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -9,6 +9,7 @@
 # github.com/buraksezer/consistent v0.0.0-20191006190839-693edf70fd72
 github.com/buraksezer/consistent
 # github.com/cenkalti/backoff/v3 v3.1.1
+## explicit
 github.com/cenkalti/backoff/v3
 # github.com/cespare/xxhash v1.1.0
 github.com/cespare/xxhash
@@ -27,10 +28,12 @@
 # github.com/eapache/queue v1.1.0
 github.com/eapache/queue
 # github.com/gogo/protobuf v1.3.1
+## explicit
 github.com/gogo/protobuf/gogoproto
 github.com/gogo/protobuf/proto
 github.com/gogo/protobuf/protoc-gen-gogo/descriptor
 # github.com/golang/protobuf v1.3.2
+## explicit
 github.com/golang/protobuf/proto
 github.com/golang/protobuf/protoc-gen-go/descriptor
 github.com/golang/protobuf/ptypes
@@ -43,6 +46,7 @@
 # github.com/google/uuid v1.1.1
 github.com/google/uuid
 # github.com/grpc-ecosystem/go-grpc-middleware v1.0.1-0.20190118093823-f849b5445de4
+## explicit
 github.com/grpc-ecosystem/go-grpc-middleware
 github.com/grpc-ecosystem/go-grpc-middleware/tags
 github.com/grpc-ecosystem/go-grpc-middleware/tracing/opentracing
@@ -52,7 +56,8 @@
 # github.com/jcmturner/gofork v1.0.0
 github.com/jcmturner/gofork/encoding/asn1
 github.com/jcmturner/gofork/x/crypto/pbkdf2
-# github.com/opencord/voltha-lib-go/v4 v4.2.2
+# github.com/opencord/voltha-lib-go/v4 v4.2.3
+## explicit
 github.com/opencord/voltha-lib-go/v4/pkg/adapters
 github.com/opencord/voltha-lib-go/v4/pkg/adapters/adapterif
 github.com/opencord/voltha-lib-go/v4/pkg/adapters/common
@@ -69,7 +74,8 @@
 github.com/opencord/voltha-lib-go/v4/pkg/probe
 github.com/opencord/voltha-lib-go/v4/pkg/techprofile
 github.com/opencord/voltha-lib-go/v4/pkg/version
-# github.com/opencord/voltha-protos/v4 v4.0.15
+# github.com/opencord/voltha-protos/v4 v4.1.0
+## explicit
 github.com/opencord/voltha-protos/v4/go/common
 github.com/opencord/voltha-protos/v4/go/ext/config
 github.com/opencord/voltha-protos/v4/go/extension
@@ -112,6 +118,7 @@
 # github.com/uber/jaeger-lib v2.2.0+incompatible
 github.com/uber/jaeger-lib/metrics
 # go.etcd.io/etcd v0.0.0-20190930204107-236ac2a90522
+## explicit
 go.etcd.io/etcd/auth/authpb
 go.etcd.io/etcd/clientv3
 go.etcd.io/etcd/clientv3/balancer
@@ -167,6 +174,7 @@
 google.golang.org/genproto/googleapis/api/annotations
 google.golang.org/genproto/googleapis/rpc/status
 # google.golang.org/grpc v1.25.1
+## explicit
 google.golang.org/grpc
 google.golang.org/grpc/backoff
 google.golang.org/grpc/balancer