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/common/image-fit.c b/common/image-fit.c
index d67678a..77dc011 100644
--- a/common/image-fit.c
+++ b/common/image-fit.c
@@ -1026,7 +1026,7 @@
 	}
 
 	/* Process all hash subnodes of the component image node */
-	fdt_for_each_subnode(fit, noffset, image_noffset) {
+	fdt_for_each_subnode(noffset, fit, image_noffset) {
 		const char *name = fit_get_name(fit, noffset, NULL);
 
 		/*