Merge: cpupower: Make TSC read per CPU for Mperf monitor

MR: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/merge_requests/3106



# Merge Request Required Information

## Summary of Changes
Add changes to lower drift in C0 percentage calculation when doing TSC reading.
Read TSC per CPU and also just after mperf reading to improve C0 percentage calculation in Mperf monitor.

Tested: See Jira issue for testing details
Signed-off-by: Joel Slebodnick <jslebodn@redhat.com>

## Approved Development Ticket
JIRA: https://issues.redhat.com/browse/RHEL-10052



Approved-by: Lenny Szubowicz <lszubowi@redhat.com>
Approved-by: David Arcari <darcari@redhat.com>
Approved-by: Prarit Bhargava <prarit@redhat.com>

Signed-off-by: Scott Weaver <scweaver@redhat.com>