Split cirrusSearchLinksUpdate into two jobs

We were doing this based on a 'primary' parameter, but this didn't
give us the control we wanted. Splitting it into two jobs will allow
more to be done at the same time, as well as separate code paths
that really were separate.

Change-Id: I7e3f4d5cb9479005a1d406efa1ffcdb1dc93e749
Merge "Split cirrusSearchLinksUpdate into two jobs"