Fix IWYU issues:

/tmp/next/build/include/linux/io_uring_types.h:56:32: error: 'ITER_DEST'
undeclared here (not in a function)
   56 |         IO_BUF_DEST     = 1 << ITER_DEST,
      |                                ^~~~~~~~~
/tmp/next/build/include/linux/io_uring_types.h:57:32: error: 'ITER_SOURCE'
undeclared here (not in a function)
   57 |         IO_BUF_SOURCE   = 1 << ITER_SOURCE,
      |                                ^~~~~~~~~~~

Fixes: 95961b72c57b2 ("io_uring/rsrc: rename and export IO_IMU_DEST / IO_IMU_SOURCE")
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 include/linux/io_uring_types.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/io_uring_types.h b/include/linux/io_uring_types.h
index b516d9feb0f14..39629ee77b911 100644
--- a/include/linux/io_uring_types.h
+++ b/include/linux/io_uring_types.h
@@ -6,6 +6,7 @@
 #include <linux/task_work.h>
 #include <linux/bitmap.h>
 #include <linux/llist.h>
+#include <linux/uio.h>
 #include <uapi/linux/io_uring.h>
 
 struct iou_loop_params;
-- 
2.47.3