Patch merged into coreboot/master: ec/lenovo/h8: Add tablet mode switch method

the following patch was just integrated into master:
commit 47f87bd93f6ebbfd771fe0a70777aeff5c65dbff
Author: Nicola Corna 
Date:   Sat Feb 11 14:00:03 2017 +0100

ec/lenovo/h8: Add tablet mode switch method

thinkpad_acpi expects a MHKG method which returns the current
    state of the tablet mode switch shifted left by 3. If such
    method is not found, subsequent laptop/tablet mode events are
    ignored.

Tested on a X220T.

Change-Id: Ic9ffea2ffe507b3692d1dd7411c52b813ec32146
    Signed-off-by: Nicola Corna 
    Reviewed-on: https://review.coreboot.org/18328
    Tested-by: build bot (Jenkins)
    Reviewed-by: Alexander Couzens

See https://review.coreboot.org/18328 for details.

-gerrit