[VOL-4290] Voltha go library updates for gRPC migration

Change-Id: I1aa2774beb6b7ed7419bc45aeb53fcae8a8ecda0
diff --git a/pkg/pmmetrics/performance_metrics.go b/pkg/pmmetrics/performance_metrics.go
index 699e8f0..1f44fed 100644
--- a/pkg/pmmetrics/performance_metrics.go
+++ b/pkg/pmmetrics/performance_metrics.go
@@ -17,7 +17,7 @@
 package pmmetrics
 
 import (
-	"github.com/opencord/voltha-protos/v4/go/voltha"
+	"github.com/opencord/voltha-protos/v5/go/voltha"
 )
 
 // PmMetrics structure holds metric and device info