Patch merged into coreboot/master: 5c97142 drivers/elog: Fix implicit function declaration issue

the following patch was just integrated into master:
commit 5c97142419a7b7204786fea5b785c23a3bb41836
Author: Edward O'Callaghan 
Date:   Tue Apr 15 14:32:53 2014 +1000

drivers/elog: Fix implicit function declaration issue

Fix compilation. Relying on the pre-processor to condition an if
    statement will lead to warnings of implicitly defined functions. To
    solve this dilemma add symbols to resolve to at compile time.

Change-Id: Id0117528c5579cc1dec750a8a17a76fab4314b3f
    Signed-off-by: Edward O'Callaghan 
    Reviewed-on: http://review.coreboot.org/5504
    Tested-by: build bot (Jenkins)
    Reviewed-by: Alexandru Gagniuc

See http://review.coreboot.org/5504 for details.

-gerrit