Decide what idq channel to use

iDQ no longer provides pglitch, meaning we need to change the channels we use to either the ranking statistic channel or the FAP channel. We probably want to use the FAP channel, because this contains the same information as the ranking statistic but has been transformed into a probability. Since we took the max of p-glitch, we'll want to take the min of FAP.

This hasn't failed in the MDCs because the MDCs are using O3 frames, which include iDQ information that has p-glitch.