Update ceilometer module

Submodule update required to pull in the:

Class ceilometer::agent::compute fails when there are [DEFAULT] sections
commented. This patch is fixing this issue. For more info check
https://bugzilla.redhat.com/show_bug.cgi?id=1060712

Change-Id: I027066881bd6ff3bda61b7cd41336c771d330ebc
Merge "Update ceilometer module"