part: Drop disk_partition_t typedef

We should not be using typedefs and these make it harder to use
forward declarations (to reduce header file inclusions). Drop the typedef.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/fat.h b/include/fat.h
index bc139f8..84573fd 100644
--- a/include/fat.h
+++ b/include/fat.h
@@ -193,7 +193,7 @@
 int file_fat_read_at(const char *filename, loff_t pos, void *buffer,
 		     loff_t maxsize, loff_t *actread);
 int file_fat_read(const char *filename, void *buffer, int maxsize);
-int fat_set_blk_dev(struct blk_desc *rbdd, disk_partition_t *info);
+int fat_set_blk_dev(struct blk_desc *rbdd, struct disk_partition *info);
 int fat_register_device(struct blk_desc *dev_desc, int part_no);
 
 int file_fat_write(const char *filename, void *buf, loff_t offset, loff_t len,