[coreboot] Patch merged into coreboot/master: 788f600 libpayload: Expose options_checksum_valid

the following patch was just integrated into master:
commit 788f60034be9fa535f5c384d5513d2817c3920ad
Author: Patrick Georgi 
Date:   Mon Jan 16 15:03:11 2012 +0100

libpayload: Expose options_checksum_valid

options_checksum_valid can be used as a fast test to
    identify invalid CMOS data by checking the checksum.

Change-Id: I44635d4c5d389579ad82435907ba8658e1bd44bb
    Signed-off-by: Patrick Georgi

Reviewed-By: Patrick Georgi  at Fri Feb  3 13:22:20 2012, giving +2
See http://review.coreboot.org/586 for details.

-gerrit