dev: Added new Lupio-IPI device

Added the LupIO inter-processor interrupt controller
device which will allow for us to use an SMP system
with the LupIO devices.

Change-Id: Iceab7446b36fb4d9b7605f3ba28665fca509d55d
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/53041
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
4 files changed