Some class names within gem5 changed in March of last year, and this code was not updated to match. Change ExternalMaster::Port to ExternalMaster::ExternalPort, and ExternalSlave::Port to ExternalSlave::ExternalPort. Change-Id: I04c0970c4107de3449473c24c7c6f99ada72bbb3 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/32640 Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Gabe Black <gabeblack@google.com> Tested-by: kokoro <noreply+kokoro@google.com>