Pcie device connected to Hudson/sb800 southbridge GPP training can works,
by applying this mainbaind specific GPIO PCIE De-Assert setting.
Change-Id: I563b2e6354a958a28f5d0162e7a4d60aa437fb9b
Signed-off-by: Kerry Sheh <shekairui@gmail.com>
Signed-off-by: Kerry Sheh <kerry.she@amd.com>
Reviewed-on: http://review.coreboot.org/543
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>