Fix l2RPC when registering asterisc

Author: pcw109550

op-challenger/game/fault/register.go

@@ -60,9 +60,13 @@ func RegisterGameTypes(
 	var closer CloseFunc
 	var l2Client *ethclient.Client
 	if cfg.TraceTypeEnabled(config.TraceTypeCannon) || cfg.TraceTypeEnabled(config.TraceTypePermissioned) || cfg.TraceTypeEnabled(config.TraceTypeAsterisc) {
-		l2, err := ethclient.DialContext(ctx, cfg.CannonL2)
+		l2RpcUrl := cfg.CannonL2
+		if cfg.TraceTypeEnabled(config.TraceTypeAsterisc) {
+			l2RpcUrl = cfg.AsteriscL2
+		}
+		l2, err := ethclient.DialContext(ctx, l2RpcUrl)
 		if err != nil {
-			return nil, fmt.Errorf("dial l2 client %v: %w", cfg.CannonL2, err)
+			return nil, fmt.Errorf("dial l2 client %v: %w", l2RpcUrl, err)
 		}
 		l2Client = l2
 		closer = l2Client.Close