iio: imu: st_lsm6dsx: add support to LSM6DSV16X

Add support to STM LSM6DSV16X (accelerometer and gyroscope) Mems sensor.
The LSM6DSV16X sensor can use LSM6DSV as fallback device since it
implements all the LSM6DSV16X features currently implemented in
st_lsm6dsx.

Datasheet: https://www.st.com/resource/en/datasheet/lsm6dsv16x.pdf


Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/284b251f861dff30c399e5736a843c8e3a497249.1667745215.git.lorenzo@kernel.org


Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>