io_uring: don't pass state to io_submit_state_end

Submission state and ctx and coupled together, no need to passs

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/e22d77a5786ef77e0c49b933ad74bae55cfb6ca6.1632516769.git.asml.silence@gmail.com


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