Merge branch 'pci/hotplug'

Merge branch 'pci/hotplug'

- Fix runtime PM ref imbalance on Hot-Plug Capable ports caused by
  misinterpreting a config read failure after a device has been removed
  (Lukas Wunner)

- Avoid creating a useless PCIe port service device for pciehp if the slot
  is handled by the ACPI hotplug driver (Lukas Wunner)

- Ignore ACPI hotplug slots when calculating depth of pciehp hotplug ports
  (Lukas Wunner)

- Simplify pci_bridge_d3_possible() and clarify comments (Lukas Wunner)

* pci/hotplug:
  PCI: Move is_pciehp check out of pciehp_is_native()
  PCI: pciehp: Use is_pciehp instead of is_hotplug_bridge
  PCI/portdrv: Use is_pciehp instead of is_hotplug_bridge
  PCI/ACPI: Fix runtime PM ref imbalance on Hot-Plug Capable ports