fastmodel: add setResetAddr interface

setResetAddr interface allows us to change the reset addr of fastmodel
cores. This will enable us to simulate hard reset or even complicated
boot sequence.

Change-Id: I0de828a4cd693119c0b44c74866efc1fffa81ace
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/53326
Reviewed-by: Earl Ou <shunhsingou@google.com>
Reviewed-by: Gabe Black <gabe.black@gmail.com>
Maintainer: Gabe Black <gabe.black@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
5 files changed