[dts] [PATCH V1]tests/pmdpcap: fix the issue of creating 2 pcap timeout

[Liu, Yong]

Thanks Yingya, applied.

On 06/05/2018 02:07 PM, han,yingya wrote:
> Add enough time to ensure successful PCAP creation.
>
> Signed-off-by: han,yingya<yingyax.han at intel.com>