[coreboot] Patch merged into coreboot/master: 5b06291 Isolate Kconfig host compiler options

the following patch was just integrated into master:
commit 5b06291ce9afba67ab62732d8fb5e62080b143fe
Author: Patrick Georgi 
Date:   Thu Sep 13 22:13:33 2012 +0200

Isolate Kconfig host compiler options

This reverts commit 645f2dd5d97ffbaa80da7fbd776a08a76eb758e3.

Instead of adding a special case to nvramtool to avoid it
    picking up Kconfig's regex.h, have the host compiler only
    consider util/kconfig for includes (ie. -Iutil/kconfig)
    for kconfig related object files.

Change-Id: Ie4f97ce38cb3e911f6e6c1e5b6f86f6998d93f69
    Signed-off-by: Patrick Georgi

Build-Tested: build bot (Jenkins) at Thu Sep 13 22:47:13 2012, giving +1
Reviewed-By: Anton Kochkov  at Fri Sep 14 07:33:06 2012, giving +2
See http://review.coreboot.org/1509 for details.

-gerrit