tests: Add tests for learning_gem5 configs

Change-Id: Ia9cbb77115c741051c871526517bb7d8124a8051
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17873
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
8 files changed