The minimal advised lower rate for adis16475 compatible devices is
1900HZ and not 4000HZ. Set that right in the comments so that it does
not generate any confusion.
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20230213153208.1027602-1-nuno.sa@analog.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>