- Remove the call to quirk_intel_irqbalance() from quirk_pciehp_msi().

- Move the x86(/x86_64)-specific quirk_intel_irqbalance() into x86 quirks.c
  due to its dependency on <linux/irq.h>

- Mark it __init rather than __devinit, since it calls __init functions.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>