[PATCH] doc: announce change in crypto queue setup

[Anoob Joseph]

> 
> Certain hardware crypto PMDs may support setting up of priority to a queue
> pair.
> Hence a new parameter for priority will be added in struct
> rte_cryptodev_qp_conf.
> 
> Signed-off-by: Akhil Goyal <gakhil at marvell.com>

Acked-by: Anoob Joseph <anoobj at marvell.com>