VOL-2153 import flow_utils from new location

Change-Id: Iecd3875574ecacd9fd2e96da9637d524724907f0
diff --git a/adaptercore/openolt_flowmgr_test.go b/adaptercore/openolt_flowmgr_test.go
index d730ec1..b76fef4 100644
--- a/adaptercore/openolt_flowmgr_test.go
+++ b/adaptercore/openolt_flowmgr_test.go
@@ -22,8 +22,8 @@
 
 	"github.com/opencord/voltha-protos/go/voltha"
 
-	fu "github.com/opencord/voltha-go/rw_core/utils"
 	"github.com/opencord/voltha-lib-go/pkg/db/model"
+	fu "github.com/opencord/voltha-lib-go/pkg/flows"
 	"github.com/opencord/voltha-lib-go/pkg/log"
 	tp "github.com/opencord/voltha-lib-go/pkg/techprofile"
 	"github.com/opencord/voltha-openolt-adapter/adaptercore/resourcemanager"