On warm reboot the PWR LED isn't automatically turned on by the EC.
Turn it on in the ramstage code, which allows to see when the reboot
has happened.
TEST=PWR LED is on after warm reboot on Lenovo X220.
Change-Id: Ia5fe3a52a6be622785c9588a94242ac0de0e19fa
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/88998
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
f2d3051631