regulator: of: Add regulator desc param to of_get_regulator_init_data()

The of_get_regulator_init_data() function is used to extract the regulator
init_data but information on how to extract certain data is defined in the
static regulator descriptor (e.g: how to map the hardware operating modes).

Add a const struct regulator_desc * parameter to the function signature so
the parsing logic could use the information in the struct regulator_desc.

of_get_regulator_init_data() relies on of_get_regulation_constraints() to
actually extract the init_data so it has to pass the struct regulator_desc
but that is modified on a later patch.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c
index 961091b..59e34a0 100644
--- a/drivers/regulator/max8998.c
+++ b/drivers/regulator/max8998.c
@@ -686,8 +686,9 @@
 			continue;
 
 		rdata->id = regulators[i].id;
-		rdata->initdata = of_get_regulator_init_data(
-							iodev->dev, reg_np);
+		rdata->initdata = of_get_regulator_init_data(iodev->dev,
+							     reg_np,
+							     &regulators[i]);
 		rdata->reg_node = reg_np;
 		++rdata;
 	}