Feature: fatfs scandir format optimization

Change-Id: I5ccc7f115cf5f989bd2a2580dcfe4f596bf973a0

drivers/bch/bchlib_cache.c

@@ -113,7 +113,8 @@ int bchlib_readsector(FAR struct bchlib_s *bch, unsigned long long sector)
         }
 
       bch->sector = (unsigned long long)-1;
-      ret = los_disk_read(bch->disk->disk_id, (FAR void *)bch->buffer, sector, 1);
+      /* useRead is set TRUE, it'll use read block for not reading large data */
+      ret = los_disk_read(bch->disk->disk_id, (FAR void *)bch->buffer, sector, 1, TRUE);
       if (ret < 0)
         {
           PRINTK("Read failed: %d\n", ret);

drivers/bch/bchlib_read.c

@@ -159,7 +159,8 @@ ssize_t bchlib_read(FAR void *handle, FAR char *buffer, loff_t offset, size_t le
         {
           nsectors = bch->nsectors - sector;
         }
-      ret = los_disk_read(bch->disk->disk_id, (FAR void *)buffer, sector + bch->sectstart, nsectors);
+      /* No need for reading large contiguous data, useRead(param 4) is set TRUE */
+      ret = los_disk_read(bch->disk->disk_id, (FAR void *)buffer, sector + bch->sectstart, nsectors, TRUE);
 
       if (ret < 0)
         {