power: supply: rt5033_charger: Fix device node reference leaks

The device node pointers `np_conn` and `np_edev`, obtained from
of_parse_phandle() and of_get_parent() respectively, are not released.
This results in a reference count leak.

Add of_node_put() calls after the last use of these device nodes to
properly release their references and fix the leaks.

Fixes: 8242336dc8a8 ("power: supply: rt5033_charger: Add cable detection and USB OTG supply")
Signed-off-by: Haotian Zhang <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Sebastian Reichel <[e-mail]>

drivers/power/supply/rt5033_charger.c

···
 	np_conn = of_parse_phandle(pdev->dev.of_node, "richtek,usb-connector", 0);
 	np_edev = of_get_parent(np_conn);
 	charger->edev = extcon_find_edev_by_node(np_edev);
+	of_node_put(np_edev);
+	of_node_put(np_conn);
 	if (IS_ERR(charger->edev)) {
 		dev_warn(charger->dev, "no extcon device found in device-tree\n");
 		goto out;