[bsp][stm32f103-fire-arbitrary] fix missing header file

bsp/stm32/stm32f103-fire-arbitrary/board/ports/spi_flash_init.c

@@ -11,7 +11,8 @@
 #include <rtthread.h>
 #include "spi_flash.h"
 #include "spi_flash_sfud.h"
-#include "drv_spi.h"
+#include <drv_spi.h>
+#include <drv_gpio.h>
 
 #if defined(BSP_USING_SPI_FLASH)
 static int rt_hw_spi_flash_init(void)