[coreboot] Patch merged into coreboot/master: bde7653 Use convenience function to checksum

the following patch was just integrated into master:
commit bde765381d216bb9144b3950aa101d6e987ebc07
Author: Philip Prindeville 
Date:   Fri Dec 23 17:22:05 2011 -0700

Use convenience function to checksum

That coreboot uses the IP checksum is an artifact, not a deliberate
    requirement to be compatible with the Internet Protocole suite. Use
    a wrapper to abstract the computation of coreboot's checksum.

Change-Id: I6491b9ba5efb9ffe5cb12a6172653a6ac80a1370
    Signed-off-by: Philip Prindeville

Reviewed-By: Patrick Georgi  at Sat Dec 24 11:51:13 2011, giving +2
See http://review.coreboot.org/497 for details.

-gerrit