[coreboot] Patch merged into coreboot/master: fe0353e Fix tracing compilation on SMM enabled targets.

the following patch was just integrated into master:
commit fe0353ef3ddd89f44acb084580507893160d337f
Author: Rudolf Marek 
Date:   Tue Sep 11 15:06:17 2012 +0200

Fix tracing compilation on SMM enabled targets.

Disallow tracing while in SMM.

Change-Id: Icde17629bb06a615cc48f017fd0cd1f7b720e62d
    Signed-off-by: Rudolf Marek

See http://review.coreboot.org/1503 for details.

-gerrit