Add cgroup and ulimit limits to precise slaves.
Add cgroup and ulimit limits to precise slaves.

Apply the jenkins slave cgroups and ulimit limits that had been applied
to precise8 to the remaining precise slaves.

Change-Id: Idb58d678c1428f1c3ca5cc1817c814c6f5933519

open-switch/infra_puppet-jenkins,open-switch/infra_puppet-jenkins