Patch merged into coreboot/master: bb03aaa lenovo/x200: Enable wacom digitizer support for x200t

the following patch was just integrated into master:
commit bb03aaa7b861e08aed2f35bd46cc6ec13be96b4d
Author: Alex David 
Date:   Thu May 14 20:09:18 2015 -0400

lenovo/x200: Enable wacom digitizer support for x200t

This patch is based on commit f2b3cd63
    (lenovo/x60: Support digitizer on X60t and X201t)

Tested on Thinkpad X200 Tablet (7450): all pen functionallity
    works (i.e. movements, presure sensitivity and buttons)

Change-Id: I9bd18642a6ea4211dc3be065456a507fc0b72561
    Signed-off-by: Alex David 
    Reviewed-on: http://review.coreboot.org/10208
    Tested-by: build bot (Jenkins)
    Reviewed-by: Paul Menzel 
    Reviewed-by: Vladimir Serbinenko

See http://review.coreboot.org/10208 for details.

-gerrit