boot/nuttx: Fix trivial compiler warnings emitted by NuttX port

#define SECONDARY_ID    1

#define SCRATCH_ID      2

#define FLASH_AREA_IMAGE_PRIMARY(x)    PRIMARY_ID

#define FLASH_AREA_IMAGE_SECONDARY(x)  SECONDARY_ID

#define FLASH_AREA_IMAGE_PRIMARY(x)    (((x) == 0) ?        \

                                         PRIMARY_ID :       \

                                         PRIMARY_ID)

#define FLASH_AREA_IMAGE_SECONDARY(x)  (((x) == 0) ?        \

                                         SECONDARY_ID :     \

                                         SECONDARY_ID)

#define FLASH_AREA_IMAGE_SCRATCH       SCRATCH_ID

#endif /* __BOOT_NUTTX_INCLUDE_SYSFLASH_SYSFLASH_H */

static void do_boot(struct boot_rsp *rsp)

{

  struct flash_area *flash_area;

  const struct flash_area *flash_area;

  struct boardioc_boot_info_s info;

  int area_id;

  int ret;

  flash_area_close(flash_area);

  if (boardctl(BOARDIOC_BOOT_IMAGE, &info) != OK)

  if (boardctl(BOARDIOC_BOOT_IMAGE, (uintptr_t)&info) != OK)

    {

      fprintf(stderr, "Failed to load application image!\n");

      FIH_PANIC;