iio: imu: st_lsm6dsx: fix LSM6DSV sensor description

Fix sensor ODR description for LSM6DSV/LSM6DSVX

Fixes: a1c6d631 ("iio: imu: st_lsm6dsx: add support to LSM6DSV")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/653e14bf79bb88d8581d2bc42da2f784caaf3776.1668417770.git.lorenzo@kernel.org


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