[PATCH] x86: Fix verify_quirk_intel_irqbalance()

Fix verify_quirk_intel_irqbalance(). genapic checks should really
happen only on affected versions of the E7520/E7320/E7525 based platforms.

AK: This should akpm's Coyote SDV

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>