VOL-2017 library code was moved to voltha-lib-go

Change-Id: Ia4b27695cf7ec3377a64572972998d52b70a0a5f
diff --git a/rw_core/graph/device_graph.go b/rw_core/graph/device_graph.go
index 357a709..5bfaf96 100644
--- a/rw_core/graph/device_graph.go
+++ b/rw_core/graph/device_graph.go
@@ -20,7 +20,7 @@
 	"errors"
 	"fmt"
 	"github.com/gyuho/goraph"
-	"github.com/opencord/voltha-go/common/log"
+	"github.com/opencord/voltha-lib-go/pkg/log"
 	"github.com/opencord/voltha-protos/go/voltha"
 	"strconv"
 	"strings"