regulator: Update da9052-regulator for DT changes

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/drivers/regulator/da9052-regulator.c b/drivers/regulator/da9052-regulator.c
index 30c647f..bdb4375 100644
--- a/drivers/regulator/da9052-regulator.c
+++ b/drivers/regulator/da9052-regulator.c
@@ -547,7 +547,7 @@
 	regulator->rdev = regulator_register(&regulator->info->reg_desc,
 					     &pdev->dev,
 					     pdata->regulators[pdev->id],
-					     regulator);
+					     regulator, NULL);
 	if (IS_ERR(regulator->rdev)) {
 		dev_err(&pdev->dev, "failed to register regulator %s\n",
 			regulator->info->reg_desc.name);