VOL-3735 Retrieve port counters using the GetExtValue(SingleGetValue) rpc from the openolt adapter

Change-Id: I6bce9eb07396fb84e6733beeb81341080243e7a5
diff --git a/internal/pkg/commands/version.go b/internal/pkg/commands/version.go
index 4dd5e2e..8856ae1 100644
--- a/internal/pkg/commands/version.go
+++ b/internal/pkg/commands/version.go
@@ -22,7 +22,7 @@
 	flags "github.com/jessevdk/go-flags"
 	"github.com/opencord/voltctl/internal/pkg/cli/version"
 	"github.com/opencord/voltctl/pkg/format"
-	"github.com/opencord/voltha-protos/v3/go/voltha"
+	"github.com/opencord/voltha-protos/v4/go/voltha"
 	"strings"
 )