Print associated of_nodes with %p

The 4.8.5 compiler wasn't happy with %x and un-cast pointers.

Change-Id: I3960b4396d36aeae791d405bee09fd6b45d7fc3d
diff --git a/drivers/qtn/ruby/emac_lib.c b/drivers/qtn/ruby/emac_lib.c
index a3ce8c63..dabaad3 100644
--- a/drivers/qtn/ruby/emac_lib.c
+++ b/drivers/qtn/ruby/emac_lib.c
@@ -695,8 +695,8 @@
 	/* Associate the mdio bus with a device tree entry */
 	device_node = of_find_node_by_name(NULL, "mdio");
 	if (device_node != NULL) {
-		printk(KERN_INFO "%s: associated mdio with of_node 0x%08x\n",
-			__FUNCTION__, device_node);
+		printk(KERN_INFO "%s: associated mdio with of_node %p\n",
+		       __FUNCTION__, (void *)device_node);
 		mii->dev.of_node = device_node;
 	}
 
diff --git a/drivers/qtn/topaz/switch_emac.c b/drivers/qtn/topaz/switch_emac.c
index b0561af..f2040f6 100644
--- a/drivers/qtn/topaz/switch_emac.c
+++ b/drivers/qtn/topaz/switch_emac.c
@@ -1192,8 +1192,8 @@
 	/* find the device tree node associated with this device */
 	of_node = of_find_node_by_name(NULL, devname);
 	if (of_node != NULL) {
-		printk(KERN_INFO "%s: associated %s with of_node 0x%08x\n",
-			__FUNCTION__, devname, of_node);
+		printk(KERN_INFO "%s: associated %s with of_node %p\n",
+		       __FUNCTION__, devname, (void *) of_node);
 		dev->dev.of_node = of_node;
 	}