With the introduction of StatGroups the organization of stats has changed and the power modeling framework has been broken. This CL uses the new function Stats::resolve to retrieve pointers to the necesary stats and use them in the power estimation formulas. Change-Id: Iedaa97eeddf51f7a0a1f222918715da309943be3 Signed-off-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/27892 Maintainer: Jason Lowe-Power <power.jg@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>