syscall: update io_uring_enter() to match kernel type
syscall: update io_uring_enter() to match kernel type

We would randomly fail depending on what garbage was passed in
the two sigset related fields.

Reported-by: Jeff Moyer <cd6badf7869d996b866599075536a600ed1910b5@redhat.com>
Signed-off-by: Jens Axboe <cd8c6775e60d6f67a6984377324e5290df3d5358@kernel.dk>

axboe/liburing,axboe/liburing,axboe/liburing