feat(jobspec): Add new new ipsec with UDP encap

feat(jobspec): Add new new ipsec with UDP encap

+ Only for dpdk-plugin and primary NIC.
 + Prefer Intel, as that seems to have more stable performance.
+ Only one testcase per suite: 1518B 1c.
+ Add full set of 10k AES256GCM tests where not present already.
+ Remove multi-core ipsec AVF tests from 3n-icx to keep duration small.
 - Performance of those was limited by CSIT-1948 anyway.

Change-Id: I9166f15b44071dafe89ac8ca7982f659006027ba
Signed-off-by: Vratko Polak <vrpolak@cisco.com>