This broke Kolla already.
One cannot assume systemd is being used during installation.
Package installations normally reload systemd themselves
if they need to.
Backport to Ussuri.
Change-Id: Iafc3e14eaf3e8341eb7d2af30c460bbee1c9c104
Story: 2008112
Task: 40828
(cherry picked from commit 5e7f72a49a)