regulator: aat2870: Use regulator_map_voltage_ascend
regulator: aat2870: Use regulator_map_voltage_ascend

The voltages in aat2870_ldo_voltages table are in ascendant order, so use
regulator_map_voltage_ascend.

Signed-off-by: Axel Lin <b6ffd6973e972cb999e8e535ab74da7fee0c035f@ingics.com>
Signed-off-by: Mark Brown <b51b9a92386687a9ac927cebfa0f978adeb8cea5@linaro.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs