util/ifdtool: Fix ICH Gbe unlock

With coreboot 4.4 switched to "Descriptor mode" for Lenovo T500
it automatically unlocks all flash regions. For Gbe region
the "Requester ID" was hardcoded resulting in *dead* Gbe.

Keep board specific "Requester ID" while unlocking Gbe region.

Allows Lenovo T500 to boot with IFD "Descriptor mode" with unlocked
flash regions.

Signed-off-by: Patrick Rudolph <siro@das-labor.org>

Change-Id: Ia4b5d1928e84bee42182fc83020e3a13fadc93c4
Reviewed-on: https://review.coreboot.org/18055
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
1 file changed