[POWERPC] Remove old interface find_devices

Replace uses with of_find_node_by_name and for_each_node_by_name.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/drivers/macintosh/ans-lcd.c b/drivers/macintosh/ans-lcd.c
index cdd5a0f..e54c4d9 100644
--- a/drivers/macintosh/ans-lcd.c
+++ b/drivers/macintosh/ans-lcd.c
@@ -145,11 +145,12 @@
 	int retval;
 	struct device_node* node;
 
-	node = find_devices("lcd");
-	if (!node || !node->parent)
+	node = of_find_node_by_name(NULL, "lcd");
+	if (!node || !node->parent || strcmp(node->parent->name, "gc")) {
+		of_node_put(node);
 		return -ENODEV;
-	if (strcmp(node->parent->name, "gc"))
-		return -ENODEV;
+	}
+	of_node_put(node);
 
 	anslcd_ptr = ioremap(ANSLCD_ADDR, 0x20);