[EXTERNAL] [PATCH v4] common/qat: add virtual qat device (vQAT)

[Akhil Goyal]

> This commit adds virtual QAT device to the Intel
> QuickAssist Technology PMD. There are three kinds of
> virtual QAT device defined which offer different QAT
> service to the customers: symmetric crypto, asymmetric
> crypto and compression.
> 
> Signed-off-by: Arkadiusz Kusztal <arkadiuszx.kusztal at intel.com>
> ---
Please rebase.