uavcan: allow board to override hw name

src/drivers/uavcannode/UavcanNode.cpp

@@ -36,6 +36,13 @@
 #include "boot_app_shared.h"
 #include "boot_alt_app_shared.h"
 
+// Weak default: return the compile-time name from uavcan_board_identity.
+// Boards that resolve the name at runtime can provide a strong override.
+extern "C" __attribute__((weak)) const char *board_get_uavcan_hw_name(void)
+{
+	return HW_UAVCAN_NAME;
+}
+
 #include <drivers/drv_watchdog.h>
 #include <lib/geo/geo.h>
 #include <lib/version/version.h>
@@ -351,7 +358,7 @@ void UavcanNode::cb_beginfirmware_update(const uavcan::ReceivedDataStructure<Uav
 
 int UavcanNode::init(uavcan::NodeID node_id, UAVCAN_DRIVER::BusEvent &bus_events)
 {
-	_node.setName(HW_UAVCAN_NAME);
+	_node.setName(board_get_uavcan_hw_name());
 
 	// Was the node_id supplied by the bootloader?