Merge branches 'pm-runtime' and 'pm-powercap'

Merge runtime PM updates and power capping updates for 6.17-rc1:

 - Document return values of suspend-related API functions in the
   runtime PM framework (Sakari Ailus)

 - Mark last busy stamp in multiple autosuspend-related functions in the
   runtime PM framework and update its documentation (Sakari Ailus)

 - Take active children into account in pm_runtime_get_if_in_use() for
   consistency (Rafael Wysocki)

 - Fix NULL pointer dereference in get_pd_power_uw() in the dtpm_cpu
   power capping driver (Sivan Zohar-Kotzer)

 - Add support for the Bartlett Lake platform to the Intel RAPL power
   capping driver (Qiao Wei)

 - Add PL4 support for Panther Lake to the intel_rapl_msr power capping
   driver (Zhang Rui)

* pm-runtime:
  PM: runtime: Take active children into account in pm_runtime_get_if_in_use()
  Documentation: PM: *_autosuspend() functions update last busy time
  PM: runtime: Mark last busy stamp in pm_request_autosuspend()
  PM: runtime: Mark last busy stamp in pm_runtime_autosuspend()
  PM: runtime: Mark last busy stamp in pm_runtime_put_sync_autosuspend()
  PM: runtime: Mark last busy stamp in pm_runtime_put_autosuspend()
  PM: runtime: Document return values of suspend-related API functions

* pm-powercap:
  powercap: dtpm_cpu: Fix NULL pointer dereference in get_pd_power_uw()
  powercap: intel_rapl: Add support for Bartlett Lake platform
  powercap: intel_rapl_msr: Add PL4 support for Panther Lake