Moving BBSim to the latest protos

Change-Id: I797c3b3b6d964110b96f9636f941082ed14ad03d
diff --git a/internal/bbsim/responders/dhcp/dhcp.go b/internal/bbsim/responders/dhcp/dhcp.go
index ce71069..8bcace6 100644
--- a/internal/bbsim/responders/dhcp/dhcp.go
+++ b/internal/bbsim/responders/dhcp/dhcp.go
@@ -26,7 +26,7 @@
 	"github.com/opencord/bbsim/internal/bbsim/packetHandlers"
 	bbsim "github.com/opencord/bbsim/internal/bbsim/types"
 	omci "github.com/opencord/omci-sim"
-	"github.com/opencord/voltha-protos/go/openolt"
+	"github.com/opencord/voltha-protos/v2/go/openolt"
 	log "github.com/sirupsen/logrus"
 	"net"
 	"reflect"