DPDK tests have been fixed in https://gerrit.fd.io/r/c/csit/+/28571
and there is enough free compute time on 3n-tsh during weekends, so
enable the job for that testbed.
Change-Id: I2cc4f4ea3de8f0ae06a9969618a34d30da920ef6 Signed-off-by: Juraj Linkeš <[email protected]>