tests, gpu-compute: test dynamic register policy in regressions

The GPU models support a simple register allocation policy (1 WF/CU at a
time) and a dynamic register allocation policy (up to max WF/CU at a
time).  By default, the simple policy is used.  However, the dynamic
policy is much more realistic relative to real hardware and thus much
more important to ensure it works in the regressions.  This commit
updates the nightly and weekly regressions accordingly to run the
dynamic register allocation policy.

Change-Id: Id263d3d5e19e4ff47f0eb6d9b08cbafdf2177fb9
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/52163
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com>
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
2 files changed