of/sparc: fix build regression from of_device changes

Commit id 1636f8ac2b08410df4766449f7c86b912443cd99 (sparc/of: Move
of_device fields into struct pdev_archdata) missed fixing up the
n2_core.c and greth.c drivers.  This patch makes the required changes.

Reported-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/drivers/crypto/n2_core.c b/drivers/crypto/n2_core.c
index 931fdd4..88ee015 100644
--- a/drivers/crypto/n2_core.c
+++ b/drivers/crypto/n2_core.c
@@ -1580,7 +1580,7 @@
 	if (!dev_intrs)
 		return -ENODEV;
 
-	for (i = 0; i < dev->num_irqs; i++) {
+	for (i = 0; i < dev->archdata.num_irqs; i++) {
 		if (dev_intrs[i] == intr)
 			return i;
 	}
@@ -1603,7 +1603,7 @@
 	if (index < 0)
 		return index;
 
-	p->irq = dev->irqs[index];
+	p->irq = dev->archdata.irqs[index];
 
 	sprintf(p->irq_name, "%s-%d", irq_name, index);