cpu-kvm: convert kvm base to new style stats

Change-Id: Iab2e99720cf9ac58edfcbdcedc944264eb12b7e1
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/33796
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2 files changed