Use devm_regulator_get_enable_read_voltage() to simplify the code.
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20240621-iio-regulator-refactor-round-2-v1-8-49e50cd0b99a@baylibre.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>