cpu: HTM Implementation for O3CPU

JIRA: https://gem5.atlassian.net/browse/GEM5-587

Change-Id: I83787f4594963a15d856b81ad283b4f032d1c007
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/30328
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
15 files changed