[spp] DPDK v18.08 support

[Yasufumi Ogawa]

> Hi Yasufumi,
> 
> I am sure you already aware but for the record for mail list, latest spp doesn't
> compile with latest DPDK v18.08 release because of some deprecated fields and APIs.
> 
> Do you guys already have a plan for the DPDK v18.08 support?
Hi Ferruh,

Yes. I should replace deprecated rte_eth_dev_attach/detach() with rte_eal_hotplug_add/remove(). I have learned how to use this 
new APIs and will send patches to make the changes.

At first, I would like to add 'CFLAGS += -Wno-deprecated-declarations' option to avoid the problem similar to DPDK, then change 
to new APIs.

Thanks,
Yasufumi
> 
> 
> Thanks,
> ferruh
>