test: Updating simple_traffic_run and adding tests

This change updates simple_traffic_run.py with adding clock_domain
for GUPSGen based generators. Also the tests that resulted in
error before are now fixed and added.

Change-Id: I992898a3aef509afd9dec1f9b5d14c5fd67cff37
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/53164
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>
2 files changed