regulator: bd96801: Constify pointers to 'regulator_desc' wrap struct

Pointer to 'struct regulator_desc' is a pointer to const and the
wrapping structure (container) is not being modified, thus entire syntax
can be replaced to preferred and safer container_of_const().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20251126-container-of-const-regulator-v1-5-eeec378144d4@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: krzk

drivers/regulator/bd96801-regulator.c

@@ -337,12 +337,12 @@ static int ldo_map_notif(int irq, struct regulator_irq_data *rid,
 	int i;
 
 	for (i = 0; i < rid->num_states; i++) {
-		struct bd96801_regulator_data *rdata;
+		const struct bd96801_regulator_data *rdata;
 		struct regulator_dev *rdev;
 
 		rdev = rid->states[i].rdev;
-		rdata = container_of(rdev->desc, struct bd96801_regulator_data,
-				     desc);
+		rdata = container_of_const(rdev->desc, struct bd96801_regulator_data,
+					   desc);
 		rid->states[i].notifs = regulator_err2notif(rdata->ldo_errs);
 		rid->states[i].errors = rdata->ldo_errs;
 		*dev_mask |= BIT(i);
@@ -354,9 +354,9 @@ static int bd96801_list_voltage_lr(struct regulator_dev *rdev,
 				   unsigned int selector)
 {
 	int voltage;
-	struct bd96801_regulator_data *data;
+	const struct bd96801_regulator_data *data;
 
-	data = container_of(rdev->desc, struct bd96801_regulator_data, desc);
+	data = container_of_const(rdev->desc, struct bd96801_regulator_data, desc);
 
 	/*
 	 * The BD096801 has voltage setting in two registers. One giving the