Patch merged into coreboot/master: db10dc7 libpayload: Fix libpayload build compilation warnings

the following patch was just integrated into master:
commit db10dc797b4d3f7eee7c840df0bd803ffe0a3a6c
Author: Vadim Bendebury 
Date:   Thu May 15 14:06:29 2014 -0700

libpayload: Fix libpayload build compilation warnings

When emerging libpayload a warning is generated about selfboot() being
    defined without a prior prototype.

Add cbfs.h when CBFS use if compiled fixes the warning.

BUG=none
    TEST=build rambi storm nyan_big
      verify that there is no compilation warnings thrown any more

Original-Change-Id: Ic9cb5571f708bb006a0d477e451fd1f3b3eb833f
    Original-Signed-off-by: Vadim Bendebury 
    Original-Reviewed-on: https://chromium-review.googlesource.com/200099
    Original-Reviewed-by: Hung-Te Lin 
    (cherry picked from commit 7e4aa17936b70dd08f58b3a55c6db55ea03709d7)
    Signed-off-by: Marc Jones

Change-Id: Ie3baaaca82fb6ec432860c638acb2a3ef9451469
    Reviewed-on: http://review.coreboot.org/7909
    Reviewed-by: Edward O'Callaghan 
    Tested-by: build bot (Jenkins)

See http://review.coreboot.org/7909 for details.

-gerrit