regulator: update some comments ([gs]et_voltage_vsel vs [gs]et_voltage_sel)

Some comments here are referring to a non-existent
regulator_ops::get_voltage_vsel() where ::get_voltage_sel() is meant,
and similar for ::set_voltage_vsel() / ::set_voltage_sel().

Update the comments.

Signed-off-by: André Draszik <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

drivers/regulator/helpers.c

···
  *
  * Regulators that use regmap for their register I/O and use pickable
  * ranges can set the vsel_reg, vsel_mask, vsel_range_reg and vsel_range_mask
- * fields in their descriptor and then use this as their get_voltage_vsel
+ * fields in their descriptor and then use this as their get_voltage_sel
  * operation, saving some code.
  */
 int regulator_get_voltage_sel_pickable_regmap(struct regulator_dev *rdev)
···
  *
  * Regulators that use regmap for their register I/O and use pickable
  * ranges can set the vsel_reg, vsel_mask, vsel_range_reg and vsel_range_mask
- * fields in their descriptor and then use this as their set_voltage_vsel
+ * fields in their descriptor and then use this as their set_voltage_sel
  * operation, saving some code.
  */
 int regulator_set_voltage_sel_pickable_regmap(struct regulator_dev *rdev,
···
  *
  * Regulators that use regmap for their register I/O can set the
  * vsel_reg and vsel_mask fields in their descriptor and then use this
- * as their get_voltage_vsel operation, saving some code.
+ * as their get_voltage_sel operation, saving some code.
  */
 int regulator_get_voltage_sel_regmap(struct regulator_dev *rdev)
 {
···
  *
  * Regulators that use regmap for their register I/O can set the
  * vsel_reg and vsel_mask fields in their descriptor and then use this
- * as their set_voltage_vsel operation, saving some code.
+ * as their set_voltage_sel operation, saving some code.
  */
 int regulator_set_voltage_sel_regmap(struct regulator_dev *rdev, unsigned sel)
 {

drivers/regulator/mt6357-regulator.c

···
  *
  * Regulators that use regmap for their register I/O can set the
  * da_vsel_reg and da_vsel_mask fields in the info structure and
- * then use this as their get_voltage_vsel operation.
+ * then use this as their get_voltage_sel operation.
  */
 static int mt6357_get_buck_voltage_sel(struct regulator_dev *rdev)
 {