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/android_ab.h b/include/android_ab.h
index 810906d..3f4e69b 100644
--- a/include/android_ab.h
+++ b/include/android_ab.h
@@ -29,6 +29,6 @@
  * @param[in] part_info Place to store the partition information
  * @return The slot number (>= 0) on success, or a negative on error
  */
-int ab_select_slot(struct blk_desc *dev_desc, disk_partition_t *part_info);
+int ab_select_slot(struct blk_desc *dev_desc, struct disk_partition *part_info);
 
 #endif /* __ANDROID_AB_H */