Power management updates for 5.15-rc1

 - Address 3 PCI device power management issues (Rafael Wysocki).

 - Add Power Limit4 support for Alder Lake to the Intel RAPL power
   capping driver (Sumeet Pawnikar).

 - Add HWP guaranteed performance change notification support to
   the intel_pstate driver (Srinivas Pandruvada).

 - Replace deprecated CPU-hotplug functions in code related to power
   management (Sebastian Andrzej Siewior).

 - Update CPU PM notifiers to use raw spinlocks (Valentin Schneider).

 - Add support for 'required-opps' DT property to the generic power
   domains (genpd) framework and use this property for I2C on ARM64
   sc7180 (Rajendra Nayak).

 - Fix Kconfig issue related to genpd (Geert Uytterhoeven).

 - Increase energy calculation precision in the Energy Model (Lukasz
   Luba).

 - Fix kobject deletion in the exit code of the schedutil cpufreq
   governor (Kevin Hao).

 - Unmark some functions as kernel-doc in the PM core to avoid
   false-positive documentation build warnings (Randy Dunlap).

 - Check RTC features instead of ops in suspend_test Alexandre
   Belloni).
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