Add Kconfig options to override Subsystem Vendor and Device ID

These can typically be set in the devicetree but we need a way to
override those values with a Kconfig setting so as not to expose
the Vendor ID before the product has launched.

Change-Id: Ib382e6d9359d24b128c693a657ffde52604efad3
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/65310
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/4455
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2 files changed