Change order of 'virtual' tuners

[Barracuda09]

Maybe if I put the 'fake' frontends first in the list. Then that would fix this (maybe)

Maybe... however, I feel it's preferable to have them first, as then the frontend number will not depend in this case of the number of the real tuners. So fe=0-2 will be the same every time.

Regards.

Originally posted by @lars18th in https://github.com/Barracuda09/SATPI/issues/69#issuecomment-550252053