io_uring: wait queue handler ring wakeup clear must be irq saving

io_uring: wait queue handler ring wakeup clear must be irq saving

With the moving of the ring wakeup clear inside the waitqueue handler, we
need to use IRQ disabling versions of the spin locking functions when
grabbing the completion lock. Otherwise we end up enabling IRQs
spuriously.

Fixes: b1abe842d31e ("io_uring: move SQPOLL post-wakeup ring need wakeup flag into wake handler")
Signed-off-by: Jens Axboe <axboe@kernel.dk>