libfdt: Sync fdt_for_each_subnode() with upstream

The signature for this macro has changed. Bring in the upstream version and
adjust U-Boot's usages to suit.

Signed-off-by: Simon Glass <sjg@chromium.org>
Update to drivers/power/pmic/palmas.c:
Signed-off-by: Keerthy <j-keerthy@ti.com>

Change-Id: I6cc9021339bfe686f9df21d61a1095ca2b3776e8
diff --git a/drivers/net/mvpp2.c b/drivers/net/mvpp2.c
index 340b85a..405776a 100644
--- a/drivers/net/mvpp2.c
+++ b/drivers/net/mvpp2.c
@@ -4153,7 +4153,7 @@
 		return -ENOENT;
 	}
 
-	fdt_for_each_subnode(blob, subnode, node) {
+	fdt_for_each_subnode(subnode, blob, node) {
 		/* Skip disabled ports */
 		if (!fdtdec_get_is_enabled(blob, subnode))
 			continue;