SMP on Malta needs to define ARCH_HAS_IRQ_PER_CPU since 2.6.14-rc1.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/include/asm-mips/mach-mips/irq.h b/include/asm-mips/mach-mips/irq.h
new file mode 100644