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

Change-Id: Ia4b27695cf7ec3377a64572972998d52b70a0a5f
diff --git a/rw_core/core/device_state_transitions_test.go b/rw_core/core/device_state_transitions_test.go
index dab88eb..b76b64a 100644
--- a/rw_core/core/device_state_transitions_test.go
+++ b/rw_core/core/device_state_transitions_test.go
@@ -16,8 +16,8 @@
 package core
 
 import (
-	"github.com/opencord/voltha-go/common/log"
 	"github.com/opencord/voltha-go/rw_core/coreIf"
+	"github.com/opencord/voltha-lib-go/pkg/log"
 	"github.com/opencord/voltha-protos/go/voltha"
 	"github.com/stretchr/testify/assert"
 	"reflect"