stdlib: Modified LupV Platform + Board to use LupioPIC + TMR

This added both the LupioPIC and LupioTMR to the LupVBoard.  While
both the PLIC and CLINT are left in the board for the bootloader
to recognize, they aren't used within the system.  In addition, the
LupV Platform was changed in order to use the LupioPIC to handle
interrupts instead of the PLIC.

Change-Id: I57005903a7ec1136b42433ef5022ccb995abb9d6
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/53037
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