From: Geert Uytterhoeven <geert@linux-m68k.org>

When compiling the IPMI drivers on m68k, I needed a few more includes:

  - <asm/irq.h> (for disable_irq_nosync() and enable_irq())

  - <linux/types.h> (for size_t)

  - <asm/system.h> (for printk())