io_uring: undeprecate epoll_ctl support

io_uring: undeprecate epoll_ctl support

commit 4ea0bf4b98d66a7a790abb285539f395596bae92 upstream.

Libuv recently started using it so there is at least one consumer now.

Cc: stable@vger.kernel.org
Fixes: 61a2732af4b0 ("io_uring: deprecate epoll_ctl support")
Link: https://github.com/libuv/libuv/pull/3979
Signed-off-by: Ben Noordhuis <info@bnoordhuis.nl>
Link: https://lore.kernel.org/r/20230506095502.13401-1-info@bnoordhuis.nl
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>