powerpc: Convert to new irq_* function names

Scripted with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_cds.c b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
index 458d91f..6299a2a 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_cds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
@@ -255,7 +255,7 @@
 	}
 
 	/* Success. Connect our low-level cascade handler. */
-	set_irq_handler(cascade_irq, mpc85xx_8259_cascade_handler);
+	irq_set_handler(cascade_irq, mpc85xx_8259_cascade_handler);
 
 	return 0;
 }