io_uring: uapi: Don't force linux/time_types.h for userspace

include/uapi/linux/io_uring.h is synced 1:1 into
liburing:src/include/liburing/io_uring.h.

liburing has a configure check to detect the need for
linux/time_types.h.

Fixes: 78a861b ("io_uring: add sync cancelation API through io_uring_register()")
Link: https://zxczxc.com/axboe/liburing/issues/708
Link: https://zxczxc.com/axboe/liburing/pull/709
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>

include/uapi/linux/io_uring.h

@@ -10,7 +10,16 @@
 
 #include <linux/fs.h>
 #include <linux/types.h>
+/*
+ * This file is shared with liburing and it has to autodetect
+ * if linux/time_types.h is available
+ */
+#ifdef __KERNEL__
+#define HAVE_LINUX_TIME_TYPES_H 1
+#endif
+#ifdef HAVE_LINUX_TIME_TYPES_H
 #include <linux/time_types.h>
+#endif
 
 #ifdef __cplusplus
 extern "C" {