regulator: tps6524x: Use regulator_map_voltage_ascend

All regulators have ascendant voltage list in this driver.
Use regulator_map_voltage_ascend for them.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

drivers/regulator/tps6524x-regulator.c

@@ -572,6 +572,7 @@ static struct regulator_ops regulator_ops = {
 	.get_voltage_sel	= get_voltage_sel,
 	.set_voltage_sel	= set_voltage_sel,
 	.list_voltage		= regulator_list_voltage_table,
+	.map_voltage		= regulator_map_voltage_ascend,
 	.set_current_limit	= set_current_limit,
 	.get_current_limit	= get_current_limit,
 };