Merge branch 'pci/endpoint'

Merge branch 'pci/endpoint'

- Destroy the EPC device in devm_pci_epc_destroy(), which previously didn't
  call devres_release() (Zijun Hu)

- Simplify pci_epc_get() with class_find_device_by_name() (Zijun Hu)

- Finish virtual EP removal in pci_epf_remove_vepf(), which previously
  caused a subsequent pci_epf_add_vepf() to fail with -EBUSY (Zijun Hu)

- Write BAR_MASK before iATU registers in pci_epc_set_bar() so we don't
  depend on the BAR_MASK reset value being larger than the requested BAR
  size (Niklas Cassel)

- Prevent changing BAR size/flags in pci_epc_set_bar() to prevent reads
  from bypassing the iATU if we reduced the BAR size (Niklas Cassel)

- Verify address alignment when programming iATU so we don't attempt to
  write bits that are read-only because of the BAR size, which could lead
  to directing accesses to the wrong address (Niklas Cassel)

- Implement artpec6 pci_epc_features so we can rely on all drivers
  supporting it so we can use it in EPC core code (Niklas Cassel)

- Check for BARs of fixed size to prevent endpoint drivers from trying to
  change their size (Niklas Cassel)

- Verify that requested BAR size is a power of two when endpoint driver
  sets the BAR (Niklas Cassel)

* pci/endpoint:
  PCI: endpoint: Verify that requested BAR size is a power of two
  PCI: endpoint: Add size check for fixed size BARs in pci_epc_set_bar()
  PCI: artpec6: Implement dw_pcie_ep operation get_features
  PCI: dwc: ep: Add 'address' alignment to 'size' check in dw_pcie_prog_ep_inbound_atu()
  PCI: dwc: ep: Prevent changing BAR size/flags in pci_epc_set_bar()
  PCI: dwc: ep: Write BAR_MASK before iATU registers in pci_epc_set_bar()
  PCI: endpoint: Finish virtual EP removal in pci_epf_remove_vepf()
  PCI: endpoint: Simplify pci_epc_get()
  PCI: endpoint: Destroy the EPC device in devm_pci_epc_destroy()
  PCI: endpoint: Replace magic number '6' by PCI_STD_NUM_BARS