Patch merged into coreboot/master: x86/smm: don't hide harmless declarations

the following patch was just integrated into master:
commit 2ca8b31ff54dd69a39e3c222f4512f46010507e3
Author: Patrick Georgi 
Date:   Sat Nov 28 12:17:32 2015 +0100

x86/smm: don't hide harmless declarations

Hiding them requires #if CONFIG_HAVE_SMI_HANDLER instead of
    if (IS_ENABLED(CONFIG_HAVE_SMI_HANDLER))

Change-Id: Ib874cd98e195ad7437d05be1696004b29bf97a66
    Signed-off-by: Patrick Georgi 
    Reviewed-on: https://review.coreboot.org/12565
    Tested-by: build bot (Jenkins)
    Reviewed-by: Martin Roth

See https://review.coreboot.org/12565 for details.

-gerrit