Merge branches 'pm-pci', 'pm-sleep', 'pm-domains' and 'pm-cpu' into linux-next

Merge branches 'pm-pci', 'pm-sleep', 'pm-domains' and 'pm-cpu' into linux-next

* pm-pci:
  PCI: PM: Enable PME if it can be signaled from D3cold
  PCI: PM: Avoid forcing PCI_D0 for wakeup reasons inconsistently
  PCI: Use pci_update_current_state() in pci_enable_device_flags()

* pm-sleep:
  PM: sleep: unmark 'state' functions as kernel-doc
  PM: sleep: check RTC features instead of ops in suspend_test
  PM: sleep: s2idle: Replace deprecated CPU-hotplug functions

* pm-domains:
  arm64: dts: sc7180: Add required-opps for i2c
  PM: domains: Add support for 'required-opps' to set default perf state
  opp: Don't print an error if required-opps is missing

* pm-cpu:
  notifier: Remove atomic_notifier_call_chain_robust()
  PM: cpu: Make notifier chain use a raw_spinlock_t