add DTB for stm32f4

target/arm/Makefile

@@ -225,6 +225,10 @@ ifeq ($(ADK_TARGET_SYSTEM_SOLIDRUN_CLEARFOG),y)
 	env $(KERNEL_MAKE_ENV) $(MAKE) -C "${LINUX_DIR}" $(KERNEL_MAKE_OPTS) \
 		armada-388-clearfog.dtb $(MAKE_TRACE)
 endif
+ifeq ($(ADK_TARGET_SYSTEM_ST_STM32F429),y)
+	env $(KERNEL_MAKE_ENV) $(MAKE) -C "${LINUX_DIR}" $(KERNEL_MAKE_OPTS) \
+		dtbs $(MAKE_TRACE)
+endif
 ifeq ($(ADK_TARGET_SYSTEM_ST_STM32F769),y)
 	env $(KERNEL_MAKE_ENV) $(MAKE) -C "${LINUX_DIR}" $(KERNEL_MAKE_OPTS) \
 		dtbs $(MAKE_TRACE)