Sched: schedutil/cpufreq updates
JIRA: https://issues.redhat.com/browse/RHEL-29020
Bring schedutil code up to about v6.8. This includes some fixes for
code in rhel9 from the 5.14 rebase. There are few pieces in cpufreq
driver code and the arm architectures needed to make it complete.
Tested: Ran stress tests with schedutil governor. Ran general scheduler
stress and performance tests.
Signed-off-by: Phil Auld pauld@redhat.com