irqchip/bcm: Restore registration print with %pOF

It is useful to print which interrupt controllers are registered in the
system and which parent IRQ they use, especially given that L2 interrupt
controllers do not call request_irq() on their parent interrupt and do
not appear under /proc/interrupts for that reason.

We used to print the base register address virtual address which had
little value, use %pOF to print the path to the Device Tree node which
maps to the physical address more easily and is what people need to
troubleshoot systems.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

drivers/irqchip/irq-bcm7038-l1.c

@@ -343,6 +343,9 @@ int __init bcm7038_l1_of_init(struct device_node *dn,
 		goto out_unmap;
 	}
 
+	pr_info("registered BCM7038 L1 intc (%pOF, IRQs: %d)\n",
+		dn, IRQS_PER_WORD * intc->n_words);
+
 	return 0;
 
 out_unmap:

drivers/irqchip/irq-bcm7120-l2.c

@@ -318,6 +318,9 @@ static int __init bcm7120_l2_intc_probe(struct device_node *dn,
 		}
 	}
 
+	pr_info("registered %s intc (%pOF, parent IRQ(s): %d)\n",
+		intc_name, dn, data->num_parent_irqs);
+
 	return 0;
 
 out_free_domain:

drivers/irqchip/irq-brcmstb-l2.c

@@ -264,6 +264,8 @@ static int __init brcmstb_l2_intc_of_init(struct device_node *np,
 		ct->chip.irq_set_wake = irq_gc_set_wake;
 	}
 
+	pr_info("registered L2 intc (%pOF, parent irq: %d)\n", np, parent_irq);
+
 	return 0;
 
 out_free_domain: