Its better to restart collector after the ceilo-upgrade is done
so that the dispatchers are loaded and communicate with other
services like gnocchi and panko and dispatch data. Otherwise
user has to retsrat collector sometimes.
Closes-bug: #1680126
Change-Id: Ib23913d698199ca87658e28e99acb5d56cebd858
(cherry picked from commit 5a4a1b99b8)