Deploy Ceilometer alarm services to the devtest overcloud controller

Adds Ceilometer alarm-evaluator and alarm-notifier to the list of services
provided to DIB for the overcloud-control node.

Relies on: I223d24256dcd4e9515149bdbdb9d021b0ef4d00e

Change-Id: I1b22ffc1fc520656851b62f32e9d9e286c958819