Apparently coreboot still uses magic numbers instead of macros in some
Lenovo mainboards. Let's use macros instead.
Note that IOTR[0123] is a 64-bit width variable.
Change-Id: Icf185c77ede5a258fe37be9e772be6804d014b57
Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
Reviewed-on: https://review.coreboot.org/c/29208
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>