regulator: da9211: Fix missing config.of_node setting

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/da9211-regulator.c

@@ -364,6 +364,7 @@ static int da9211_regulator_init(struct da9211 *chip)
 		config.dev = chip->dev;
 		config.driver_data = chip;
 		config.regmap = chip->regmap;
+		config.of_node = chip->dev->of_node;
 
 		chip->rdev[i] = devm_regulator_register(chip->dev,
 			&da9211_regulators[i], &config);