VOL-1643 Update voltha-go to use voltha-protos and voltha-lib-go v3.0.0

Change-Id: I86744943d59de38e9285ed7f53adc49c3b047e62
diff --git a/ro_core/core/logical_device_agent_test.go b/ro_core/core/logical_device_agent_test.go
index 1685606..18e8c97 100644
--- a/ro_core/core/logical_device_agent_test.go
+++ b/ro_core/core/logical_device_agent_test.go
@@ -18,7 +18,7 @@
 import (
 	"context"
 	"github.com/opencord/voltha-go/ro_core/config"
-	"github.com/opencord/voltha-lib-go/v2/pkg/log"
+	"github.com/opencord/voltha-lib-go/v3/pkg/log"
 	"github.com/phayes/freeport"
 	"github.com/stretchr/testify/assert"
 	"strconv"