[VOL-4292] OpenOLT Adapter changes for gRPC migration

Change-Id: I5af2125f2c2f53ffc78c474a94314bba408f8bae
diff --git a/internal/pkg/olterrors/olterrors.go b/internal/pkg/olterrors/olterrors.go
index 4aa2373..bafc721 100644
--- a/internal/pkg/olterrors/olterrors.go
+++ b/internal/pkg/olterrors/olterrors.go
@@ -21,8 +21,9 @@
 	"context"
 	"encoding/json"
 	"fmt"
-	"github.com/opencord/voltha-lib-go/v6/pkg/log"
 	"strings"
+
+	"github.com/opencord/voltha-lib-go/v7/pkg/log"
 )
 
 const (