Change parser.add_options to parser.add_option Change-Id: I8b0235a1bf9e01e915dec71d85b9da02c477eb34 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/35175 Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Matt Sinclair <mattdsinclair@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>