According to datasheets for Intel ICH/PCH, it works for chipsets from
ICH7 to 9-series PCH, with PCI device address D31:F2.
Change-Id: If1ddd7208108bda949b5a94894a7bf9e8bfe1e5f
Signed-off-by: Iru Cai <mytbk920423@gmail.com>
Reviewed-on: https://review.coreboot.org/15106
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>