Patch merged into coreboot/master: chromeos: Add timestamps to measure VPD read times

the following patch was just integrated into master:
commit 4f7a3614cd07acdb6855c32eea38e5585834ee24
Author: Julius Werner 
Date:   Wed Jan 20 18:01:15 2016 -0800

chromeos: Add timestamps to measure VPD read times

This patch adds three timestamps to coreboot and the cbmem utility that
    track the time required to read in the Chrome OS Vital Product Data
    (VPD) blocks (RO and RW). It's useful to account for these like all
    other large flash accesses, since their size is variable.

BRANCH=None
    BUG=None
    TEST=Booted Oak, found my weird 100ms gap at the start of ramstage
    properly accounted for.

Change-Id: I2024ed4f7d5e5ae81df9ab5293547cb5a10ff5e0
    Signed-off-by: Patrick Georgi 
    Original-Commit-Id: b97288b5ac67ada56e2ee7b181b28341d54b7234
    Original-Change-Id: Ie69c1a4ddb6bd3f1094b3880201d53f1b5373aef
    Original-Signed-off-by: Julius Werner 
    Original-Reviewed-on: https://chromium-review.googlesource.com/322831
    Original-Reviewed-by: David Hendricks 
    Reviewed-on: https://review.coreboot.org/13139
    Tested-by: build bot (Jenkins)
    Reviewed-by: Paul Menzel 
    Reviewed-by: Martin Roth

See https://review.coreboot.org/13139 for details.

-gerrit