[coreboot] Patch merged into master: 53f8dcf libpayload: export get_cbfs_header()

the following patch was just integrated into master:
commit 53f8dcfa8f80cc9d1b5e27dd7eae93e9ab17446a
Author: Patrick Georgi 
Date:   Thu Aug 18 11:36:03 2011 +0200

libpayload: export get_cbfs_header()

Keep in sync with coreboot's version.

Change-Id: I8a253446bd3b2ce9d05c6076a3f49f0260ecd5f9
    Signed-off-by: Patrick Georgi

See http://review.coreboot.org/158 for details.

-gerrit