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.

Change-Id: Ia6b9f82b3441b184934f78f27f6da5b38942c85c
Closes-Bug: #1337927
Merge "fuel-upgrade: call rollback for used upgraders"