[dpdk-stable] please help backporting some patches to LTS release 17.11.5

[yoursunny]

Hi Yongseok


> f49d7e9a9  Junxiao Shi      cryptodev: fix pool element size for undefined
> operation


This commit fixes a bug related to asymmetric crypto operations. DPDK 17.11
does not support asymmetric crypto so it does not need this patch.

Yours, Junxiao