LinuxKPI: Add pci_dev_id to linux/pci.h

It returns bus/device/function number for given PCI device.
Also add intermediate PCI_DEVID macro used in some drivers.

Sponsored by: Serenity Cyber Security, LLC
Reviewed by: emaste
MFC after: 1 week

(cherry picked from commit f1206503e5a0073f56710bfebb6e503dcf612536)