These bring in some pieces that those headers use but were only coincidentally included by something else when they were used. Change-Id: I5f119260d8f25d914d8545a60834f23f65f82d0c Reviewed-on: https://gem5-review.googlesource.com/c/16948 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Gabe Black <gabeblack@google.com>