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/reiserfs.h b/include/reiserfs.h
index de41500..a655d5e 100644
--- a/include/reiserfs.h
+++ b/include/reiserfs.h
@@ -62,7 +62,7 @@
 } reiserfs_error_t;
 
 
-void reiserfs_set_blk_dev(struct blk_desc *rbdd, disk_partition_t *info);
+void reiserfs_set_blk_dev(struct blk_desc *rbdd, struct disk_partition *info);
 extern int reiserfs_ls (char *dirname);
 extern int reiserfs_open (char *filename);
 extern int reiserfs_read (char *buf, unsigned len);