remove check for single mmio

tt_metal/llrt/tt_cluster.cpp

@@ -280,7 +280,7 @@ void Cluster::open_driver(const bool &skip_driver_allocs) {
 
         // Adding this check is a workaround for current UMD bug that only uses this getter to populate private metadata
         // that is later expected to be populated by unrelated APIs
-        TT_FATAL(device_driver->get_target_mmio_device_ids().size() == 1, "Only one target mmio device id allowed.");
+        // TT_FATAL(device_driver->get_target_mmio_device_ids().size() == 1, "Only one target mmio device id allowed.");
     } else if (this->target_type_ == TargetDevice::Simulator) {
         device_driver = std::make_unique<tt_SimulationDevice>(sdesc_path);
     }