Patch merged into coreboot/master: skylake: Increase IGD stolen size to 64MB

the following patch was just integrated into master:
commit efcddd971779b10764985caa485091e194e12529
Author: Duncan Laurie 
Date:   Sat Feb 20 09:10:53 2016 -0800

skylake: Increase IGD stolen size to 64MB

The FBC hardware for skylake does not have access to the bios_reserved
    range so it always assumes 8MB is used and so the kernel will
    therefore need to avoid using the last 8MB of the stolen window.
    With the default stolen size of 32MB(-8MB) there is not enough space
    for FBC to work with a high resolution panel.

Kernel reference:
    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a9...

BUG=chrome-os-partner:50396
    BRANCH=glados
    TEST=build and boot on chell DVT

Change-Id: I3049d7d9e7c551aad5b8fd1630d5fbd88ccb2692
    Signed-off-by: Patrick Georgi 
    Original-Commit-Id: fff1f4b35e23e77cdc72c5bcc290f199494cdbbb
    Original-Change-Id: If468cca5759a320f3cd2d7eb09f4bcc0117b24cb
    Original-Signed-off-by: Duncan Laurie 
    Original-Reviewed-on: https://chromium-review.googlesource.com/328813
    Original-Reviewed-by: Aaron Durbin 
    Reviewed-on: https://review.coreboot.org/13833
    Tested-by: build bot (Jenkins)
    Reviewed-by: Stefan Reinauer

See https://review.coreboot.org/13833 for details.

-gerrit