Patch merged into coreboot/master: 21565ca rambi: use SERIRQ pad as keyboard irq in gpio mode

the following patch was just integrated into master:
commit 21565cac1b0b34c3e76c1bcd2bf933ac1313ecac
Author: Aaron Durbin 
Date:   Wed Nov 20 15:21:40 2013 -0600

rambi: use SERIRQ pad as keyboard irq in gpio mode

The level shifting between 3.3V and 1.8V for the SERIRQ
    signal is not working. Instead use the SERIRQ pad as
    a gpio which is used as a direct IRQ signal for the
    keyboard interupt.

BUG=chrome-os-partner:23965
    BRANCH=None
    TEST=Built and booted rambi. Keyboard works with associated EC change.
    CQ-DEPEND=CL:177189

Change-Id: Ifc270ca38207828a6d4711551d4bde9121559cca
    Signed-off-by: Aaron Durbin 
    Reviewed-on: https://chromium-review.googlesource.com/177223
    Tested-by: Bernie Thompson 
    Reviewed-on: http://review.coreboot.org/4979
    Tested-by: build bot (Jenkins)
    Reviewed-by: Patrick Georgi

See http://review.coreboot.org/4979 for details.

-gerrit