Correctly reschedule failed periodic

BUG: 24341715
Failed jobs are rescheduled with no override deadline to avoid
running a failed job with unsatisfied constraints.
A periodic job always has an override deadline and the periodic
rescheduling code assumes this.
Hence a periodic that failed until eventual success would be
rescheduled in a bad state.

Change-Id: Id110b3522df2003506a9efdde4e719e1b9932106