VOL-2189 update voltha-openolt-adapter to use voltha-protos=v2.0.1 and voltha-lib-go=v2.2.9;
Release v2.2.1

Change-Id: I527d6541f9d8b7df8504d886a01163c7e57bdd77
diff --git a/vendor/github.com/opencord/voltha-lib-go/v2/pkg/db/model/child_type.go b/vendor/github.com/opencord/voltha-lib-go/v2/pkg/db/model/child_type.go
index 016d7a2..5928192 100644
--- a/vendor/github.com/opencord/voltha-lib-go/v2/pkg/db/model/child_type.go
+++ b/vendor/github.com/opencord/voltha-lib-go/v2/pkg/db/model/child_type.go
@@ -21,7 +21,7 @@
 	"github.com/golang/protobuf/proto"
 	"github.com/golang/protobuf/protoc-gen-go/descriptor"
 	"github.com/opencord/voltha-lib-go/v2/pkg/log"
-	"github.com/opencord/voltha-protos/go/common"
+	"github.com/opencord/voltha-protos/v2/go/common"
 	"reflect"
 	"strconv"
 	"sync"