Fix CMOS checksum calculation in libpayload.

Change-Id: I64ea53fa098fbcfc76e0ebd5f049a2ee3d0a1024
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/314
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>
1 file changed