intel: Fix "properly test for HAS_LLC"

commit 92fd0ce4
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Fri Aug 31 11:16:53 2012 +0200

    intel: properly test for HAS_LLC

missed slightly and in effect had no effect on the outcome of checking
whether the kernel/chipset supported LLC.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>