fio.1: add rbd options to man page

Signed-off-by: Danny Al-Gaaf <[email protected]>

(cherry picked from commit 6e44a82a724b7ad0a559c22eec694e8afa7d2a20
[email protected]:dalgaaf/fio.git)
Signed-off-by: Jens Axboe <[email protected]>
1 file changed