m68knommu: switch to using generic_handle_irq()

Switch to using generic_handle_irq() instead of the deprecated __do_IRQ().
Signed-off-by: Greg Ungerer <gerg@uclinux.org>

arch/m68knommu/kernel/irq.c

@@ -23,7 +23,7 @@ asmlinkage void do_IRQ(int irq, struct pt_regs *regs)
 	struct pt_regs *oldregs = set_irq_regs(regs);
 
 	irq_enter();
-	__do_IRQ(irq);
+	generic_handle_irq(irq);
 	irq_exit();
 
 	set_irq_regs(oldregs);