powerpc/8xx: Fix another breakage from the irq_data conversion

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/sysdev/mpc8xx_pic.c b/arch/powerpc/sysdev/mpc8xx_pic.c
index f550e23..a88800f 100644
--- a/arch/powerpc/sysdev/mpc8xx_pic.c
+++ b/arch/powerpc/sysdev/mpc8xx_pic.c
@@ -80,7 +80,7 @@
 		if ((hw & 1) == 0) {
 			siel |= (0x80000000 >> hw);
 			out_be32(&siu_reg->sc_siel, siel);
-			__irq_set_handler_locked(irq, handle_edge_irq);
+			__irq_set_handler_locked(d->irq, handle_edge_irq);
 		}
 	}
 	return 0;