io_uring: support CQE32 in /proc info

This exposes the extra1 and extra2 fields in the /proc output.

Signed-off-by: Stefan Roesch <shr@fb.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Link: https://lore.kernel.org/r/20220426182134.136504-11-shr@fb.com


Signed-off-by: Jens Axboe <axboe@kernel.dk>