cpu-o3: convert elastic trace to new style stats

Change-Id: If767f17b905a77e12058022a9e8bc65b854978a4
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/33399
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2 files changed