sim: cris: migrate from WITH_DEVICES to WITH_HW

The cris port was using the device framework to handle two addresses when
the --cris-900000xx flag was specified.  That can be implemented using the
newer hardware framework instead which allows us to drop the device logic
entirely, as well as delete the tconfig.h file.  Basically we create a new
cris_900000xx device model and move the read logic out of devices.c and
into that.  The rest of the devices logic was callback to the hardware
framework already.