regulator: max77686: Initialise rmatch.of_node to NULL.

Now of_regulator_match() returns without finding the match if match->of_node
is not NULL.
Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

drivers/regulator/max77686.c

@@ -262,6 +262,7 @@ static int max77686_pmic_dt_parse_pdata(struct max77686_dev *iodev,
 	for (i = 0; i < pdata->num_regulators; i++) {
 		rmatch.name = regulators[i].name;
 		rmatch.init_data = NULL;
+		rmatch.of_node = NULL;
 		of_regulator_match(iodev->dev, regulators_np, &rmatch, 1);
 		rdata[i].initdata = rmatch.init_data;
 	}