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/fs/fs_internal.c b/fs/fs_internal.c
index d369c43..1ff804d 100644
--- a/fs/fs_internal.c
+++ b/fs/fs_internal.c
@@ -10,7 +10,7 @@
 #include <part.h>
 #include <memalign.h>
 
-int fs_devread(struct blk_desc *blk, disk_partition_t *partition,
+int fs_devread(struct blk_desc *blk, struct disk_partition *partition,
 	       lbaint_t sector, int byte_offset, int byte_len, char *buf)
 {
 	unsigned block_len;