Update ceilometer config files permissions

The /etc/ceilometer/*.conf|*.yaml files are world readable.
This may lead to sensitive information leakage and cloud compromise.

Set ceilometer config files permissions to 0640.
Set ceilometer config files owner and group to root:ceilometer.

Change-Id: Ia008f1c0780be435fee03ca58cfcdb7320bc074d
2 files changed