add:添加fatfs默认配置

components/fatfs/ffconf.h

@@ -1,3 +1,4 @@
+#include "luat_conf_bsp.h"
 /*---------------------------------------------------------------------------/
 /  Configurations of FatFs Module
 /---------------------------------------------------------------------------*/
@@ -112,8 +113,11 @@
 /     0 - Include all code pages above and configured by f_setcp()
 */
 
-
-#define FF_USE_LFN		2
+#ifdef  LUAT_FF_USE_LFN
+#define FF_USE_LFN		LUAT_FF_USE_LFN
+#else
+#define FF_USE_LFN		0
+#endif
 #define FF_MAX_LFN		255
 /* The FF_USE_LFN switches the support for LFN (long file name).
 /
@@ -132,8 +136,11 @@
 /  memory for the working buffer, memory management functions, ff_memalloc() and
 /  ff_memfree() exemplified in ffsystem.c, need to be added to the project. */
 
-
-#define FF_LFN_UNICODE	2
+#ifdef  LUAT_FF_LFN_UNICODE
+#define FF_LFN_UNICODE		LUAT_FF_LFN_UNICODE
+#else
+#define FF_LFN_UNICODE		0
+#endif
 /* This option switches the character encoding on the API when LFN is enabled.
 /
 /   0: ANSI/OEM in current CP (TCHAR = char)