This allows us to be more specific when matching devices, and also means we get
more attributes 'for free' from the FuUdevDevice->probe().
This would allow us to have multiple device GTypes handling multiple MEI
interfaces in the same plugin., for instance, PTHI and MKHI.
The slight fly in the ointment is that the kernel does not set the 'dev' for
the mei_me devices, but it's always going to be just /dev/mei0, so hardcode it.
It is weird to do this when constructing the object, and it allows us
to match PossiblePlugin quirk matches on potentially better instance
IDs added by the superclass.
