[LTP] [PATCH 1/1] Added Refrence for Linux Asynchronous IO APIs in LTP

[Petr Vorel]

Hi Vikas,

we decided to take only header and configure.ac as these are valid parts and
good preparation steps. So I removed the test itself and also updated header to
reflect v5.6 changes.
I also dared to remove your Author: line (but kept copyright of course), as Jens
Axboe and other kernel developers are the authors :).

Kind regards,
Petr