staging:iio:ad7606 replaces IIO_ST macro with explicit entries to struct scan_type

IIO_ST is going away as it is a pain to maintain. Note that this driver
currently ensures all fields are converted to the native endianness
to keep things consistent across the different bus types.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>

drivers/staging/iio/adc/ad7606_core.c

@@ -239,7 +239,12 @@ static const struct attribute_group ad7606_attribute_group_range = {
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),	\
 		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),\
 		.scan_index = num,				\
-		.scan_type = IIO_ST('s', 16, 16, 0),		\
+		.scan_type = {					\
+			.sign = 's',				\
+			.realbits = 16,				\
+			.storagebits = 16,			\
+			.endianness = IIO_CPU,			\
+		},						\
 	}
 
 static const struct iio_chan_spec ad7606_8_channels[] = {