iio: accel: adxl345: Make data_range obsolete

iio: accel: adxl345: Make data_range obsolete

Replace write() data_format by regmap_update_bits() to keep bus specific
pre-configuration which might have happened before on the same register.
The bus specific bits in data_format register then need to be masked out,

Remove the data_range field from the struct adxl345_data, because it is
not used anymore.

Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com>
Link: https://lore.kernel.org/r/20240401194906.56810-2-l.rubusch@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>