zubaxgnss-v1 bootloader uses common board api for UUID

src/drivers/boards/zubaxgnss-v1/bootloader/CMakeLists.txt

@@ -49,6 +49,7 @@ px4_add_module(
 	SRCS
 		boot.c
 		led.c
+		../../common/stm32/board_identity.c
 		${px4_bootloader_base}src/uavcan/main.c
 		${px4_bootloader_base}src/common/boot_app_shared.c
 		${px4_bootloader_base}src/sched/timer.c

src/drivers/boards/zubaxgnss-v1/bootloader/boot.c

@@ -165,14 +165,13 @@ uint8_t board_get_product_name(uint8_t *product_name, size_t maxlen)
 
 size_t board_get_hardware_version(uavcan_HardwareVersion_t *hw_version)
 {
-	size_t length = 12;
 	memset(hw_version, 0 , sizeof(uavcan_HardwareVersion_t));
 
 	hw_version->major = HW_VERSION_MAJOR;
 	hw_version->minor = HW_VERSION_MINOR;
 
-	memcpy(hw_version->unique_id, (void *) STM32_SYSMEM_UID, length);
-	return length;
+	board_get_uuid_raw((raw_uuid_byte_t *) hw_version->unique_id);
+	return PX4_CPU_UUID_BYTE_LENGTH;
 }
 
 /****************************************************************************