cpu: convert trace cpu to new style stats

This required making minor changes to how the name was set for the
generators within the trace CPU to enable the stats to keep similar
names.

Change-Id: I9f97d4006a0edbd717fc34d0033b9548011d1631
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/33875
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Ayaz Akram <yazakram@ucdavis.edu>
2 files changed