m68k/irq: Add m68k_setup_irq_controller()

This is a wrapper around m68k_setup_irq_chip() that discards its dummy
second parameter, to ease the future transition to genirq.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
diff --git a/arch/m68k/amiga/amiints.c b/arch/m68k/amiga/amiints.c
index 09a695b..8af5ea3 100644
--- a/arch/m68k/amiga/amiints.c
+++ b/arch/m68k/amiga/amiints.c
@@ -80,7 +80,8 @@
 	if (request_irq(IRQ_AUTO_5, ami_int5, 0, "int5", NULL))
 		pr_err("Couldn't register int%d\n", 5);
 
-	m68k_setup_irq_chip(&amiga_irq_chip, IRQ_USER, AMI_STD_IRQS);
+	m68k_setup_irq_controller(&amiga_irq_chip, handle_simple_irq, IRQ_USER,
+				  AMI_STD_IRQS);
 
 	/* turn off PCMCIA interrupts */
 	if (AMIGAHW_PRESENT(PCMCIA))