VOL-2111 use voltha-lib-go

Change-Id: I307c3c5648476d9bdc2c855be7d59bd9264665bd
diff --git a/vendor/github.com/opencord/voltha-go/rw_core/utils/flow_utils.go b/vendor/github.com/opencord/voltha-go/rw_core/utils/flow_utils.go
index 4293126..7ead52d 100644
--- a/vendor/github.com/opencord/voltha-go/rw_core/utils/flow_utils.go
+++ b/vendor/github.com/opencord/voltha-go/rw_core/utils/flow_utils.go
@@ -21,7 +21,7 @@
 	"fmt"
 	"github.com/cevaris/ordered_map"
 	"github.com/gogo/protobuf/proto"
-	"github.com/opencord/voltha-go/common/log"
+	"github.com/opencord/voltha-lib-go/pkg/log"
 	ofp "github.com/opencord/voltha-protos/go/openflow_13"
 	"math/big"
 	"strings"