tristate features will automatically disable if dependencies marked
as required are missing.
Packagers can manually override using `auto_features`.
Link: https://mesonbuild.com/Build-options.html#features
Add the IFD regions as child devices and set the region access on the child
devices. Also add read-only SPI descriptor as an HSI attribute and require
FLOCKDN on Intel hardware.
Use the hidden PCI 00:1f.5 device to set the SPIBAR automatically and generate
the quirk file automatically to support more hardware.
