configs: Create base GPUFS vega config and atomic config

Move the Vega KVM script code to a common base file and add scripts for
KVM and atomic. Since atomic is now possible in GPUFS this gives a way
to run it without editing the current scripts.

Change-Id: I094bc4d4df856563535c28c1f6d6cc045d6734cd
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71939
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com>
Maintainer: Matt Sinclair <mattdsinclair@gmail.com>
(cherry picked from commit 05ffa354268301821518fd430d069cd23049527d)
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/72078
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
3 files changed