Use system backend default class

As multinode models are using backend default class for ceilometer
it also should be used for aio.

Change-Id: Ied73993d52f5aabec1edb24ff6233ce9df2e9adb
1 file changed
tree: 5a2f3eea7f3429d9acfa8c8e25fd3759c9a625bd
  1. classes/
  2. .gitmodules
  3. .gitreview