To make data flow more explicit, global variable 'impedance' is replaced
with a local variable, which is passed as a function argument.
BUG=none
BRANCH=kukui
TEST=Krane boots correctly
Change-Id: I0f6dacc33fda013a3476a10d9899821b7297e770
Signed-off-by: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35766
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
4d4ccced31