regulator: as3722: Add missing of_node_put

Add of_node_put to decrement the ref count.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>

drivers/regulator/as3722-regulator.c

@@ -719,6 +719,7 @@ static int as3722_get_regulator_dt_data(struct platform_device *pdev,
 
 	ret = of_regulator_match(&pdev->dev, np, as3722_regulator_matches,
 			ARRAY_SIZE(as3722_regulator_matches));
+	of_node_put(np);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Parsing of regulator node failed: %d\n",
 			ret);