This change updates the riscv-hello-restore-checkpoint.py script's checkpoint for one compatible with v23 Change-Id: Idee262491db45049d9afe69190bc8890d75c8cdf Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/68337 Maintainer: Bobby Bruce <bbruce@ucdavis.edu> Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu> Tested-by: kokoro <noreply+kokoro@google.com>