Log Message:
Update pciutils to 3.7.0.

2020-05-31  Martin Mares <mj@ucw.cz>

	* Released as 3.7.0.

	* Added or improved the following capabilities: Designated
	  Vendor-Specific, Compute eXpress Link, Resizable BARs,
	  VF Resizable BARs, Link Capabilities 2, Link Status 2.

	* On Linux, lspci can show IOMMU groups.

	* setpci can be asked to skip bus scan and operate on a device
	  completely specified by its domain/bus/dev/func address. This
	  involved major internal cleanup.

	* The above feature of setpci uses the pci_get_dev() function,
	  which obtains a struct pci_dev without doing a bus scan. This was
	  always possible, but apparently little used, because back-ends
	  frequently choked when operating on such devices. Fixed a lot
	  of minor bugs related to this.

	* Also, back-ends which do not support domains now correctly fail when
	  trying to access devices outside domain 0.

	* Semantics of pci_fill_info() and pci_dev->known_fields was
	  underspecified, which lead to inconsistencies between back-ends.
	  Improved documentation to give a more precise definition and updated
	  all back-ends to conform to it. Most importantly,
	  pci_dev->known_fields shows all fields requested over the lifetime
	  of the pci_dev, but never those which are not supported by the
	  back-end.

	* As usually, updated pci.ids to the current snapshot of the database.