This updates `configs/example/components-library/boot_exit_disk_run.py` to be used for the gem5 boot tests by exposing arguments thus making the run configurable. Change-Id: I4e1c77e522ffca4bac2f328a1bc2306a4cd1402f Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/49306 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com>