Some files depend on definitions from files that they weren't including themselves. They were working accidentally by getting those definitions transitively through other, unrelated headers. Change-Id: I50c919a4eb6c4484d4ee6b7f4fe02f075132964d Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/36282 Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>