[DeviceDrivers]Modify SFUD's config for suitable more compilers.

components/drivers/spi/sfud/inc/sfud_cfg.h

@@ -57,6 +57,6 @@
 #error "Please configure RT_SFUD_USING_SFDP or RT_SFUD_USING_FLASH_INFO_TABLE at least one kind of mode (in rtconfig.h)."
 #endif
 
-#define SFUD_FLASH_DEVICE_TABLE NULL
+#define SFUD_FLASH_DEVICE_TABLE {0}
 
 #endif /* _SFUD_CFG_H_ */