fix: add (void) to GetFileMappingList method

close: #I3XPXY
Signed-off-by: Nmucor <mucorwang@gmail.com>

fs/vfs/operation/fs_file_mapping.c

@@ -294,8 +294,10 @@ out:
     return ret;
 }
 
-struct file_map* GetFileMappingList()
+#ifdef LOSCFG_DEBUG_VERSION
+struct file_map* GetFileMappingList(void)
 {
     return &g_file_mapping;
 }
 #endif
+#endif