alpha: Convert to new irq function names

Scripted with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/arch/alpha/kernel/irq_pyxis.c b/arch/alpha/kernel/irq_pyxis.c
index b30227f..13c97a5 100644
--- a/arch/alpha/kernel/irq_pyxis.c
+++ b/arch/alpha/kernel/irq_pyxis.c
@@ -102,7 +102,7 @@
 	for (i = 16; i < 48; ++i) {
 		if ((ignore_mask >> i) & 1)
 			continue;
-		set_irq_chip_and_handler(i, &pyxis_irq_type, handle_level_irq);
+		irq_set_chip_and_handler(i, &pyxis_irq_type, handle_level_irq);
 		irq_set_status_flags(i, IRQ_LEVEL);
 	}