iio: adc: ad7173: Fix incorrect compatible string

Wrong compatible strings are used for AD411x devices.
Fix by adding the missing "adi," prefix.

Fixes: 13d12e3a ("iio: adc: ad7173: Add support for AD411x devices")
Signed-off-by: Dumitru Ceclan <dumitru.ceclan@analog.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://patch.msgid.link/20240723111322.324947-1-dumitru.ceclan@analog.com


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