fuel-upgrade: call rollback for used upgraders

We have to call rollback only for those upgraders that already completed
or failed. We don't need to call rollback for upgraders that wasn't
started yet.

Closes-Bug: #1337927

Change-Id: Ia6b9f82b3441b184934f78f27f6da5b38942c85c
Merge "fuel-upgrade: call rollback for used upgraders" into stable/5.0