iio: addac: ad74413r: add spi_device_id table

Silence the run-time warning

  SPI driver ad74413r has no spi_device_id for adi,ad74412r

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20221115095517.1008632-2-linux@rasmusvillemoes.dk


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