VOL-2153 import flow_utils from new location

Change-Id: Iecd3875574ecacd9fd2e96da9637d524724907f0
diff --git a/adaptercore/olt_platform_test.go b/adaptercore/olt_platform_test.go
index 974d684..9b300ab 100644
--- a/adaptercore/olt_platform_test.go
+++ b/adaptercore/olt_platform_test.go
@@ -22,7 +22,7 @@
 	"reflect"
 	"testing"
 
-	fu "github.com/opencord/voltha-go/rw_core/utils"
+	fu "github.com/opencord/voltha-lib-go/pkg/flows"
 	ofp "github.com/opencord/voltha-protos/go/openflow_13"
 	"github.com/opencord/voltha-protos/go/voltha"
 )