Re-enable Ceilometer composable roles for controller

Re-enable Ceilometer composable roles for controller

This patch brings back Ceilometer composable roles for controller,
module some adjustments to make it work.

Fixes 3 issues in Ceilometer composable services

1) This patch fixes the hiera maps in the pacemaker ceilometer*
templates. These were lists and should be a map.

2) fixes a critical issue in ceilometer-base.yaml where the
password was incorrectly coded in the YAML using get_param on
a string which wasn't actually a parameter.

3) Fixes the ceilometer_coordination_url so that it uses a YAML anchor
as was implied instead of get_param on a string which wasn't a
parameter.

4) Fixes the default database connection to use mongodb and configured
in puppet-tripleo profile appropriately.

Co-Authored-By: Dan Prince <dprince@redhat.com>
Co-Authored-By: Pradeep Kilambi <pkilambi@redhat.com>
Closes-Bug: #1601844
Change-Id: Ia0a59121b9ffd5e07647f66137ce53870bc6b5d6