regulator: dummy: Specify a struct device

This will be becoming mandatory.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
diff --git a/drivers/regulator/dummy.c b/drivers/regulator/dummy.c
index 1571bee..86f655c 100644
--- a/drivers/regulator/dummy.c
+++ b/drivers/regulator/dummy.c
@@ -42,6 +42,7 @@
 	struct regulator_config config = { };
 	int ret;
 
+	config.dev = &pdev->dev;
 	config.init_data = &dummy_initdata;
 
 	dummy_regulator_rdev = regulator_register(&dummy_desc, &config);