iio: chemical: atlas-ezo-sensor: make atlas_ezo_devices const

Add const qualifier to struct atlas_ezo_device atlas_ezo_devices[]. This
is read-only data so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-13-v1-1-2a7fd592a07c@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Author: dlech

drivers/iio/chemical/atlas-ezo-sensor.c

@@ -82,7 +82,7 @@ static const struct iio_chan_spec atlas_hum_ezo_channels[] = {
 	},
 };
 
-static struct atlas_ezo_device atlas_ezo_devices[] = {
+static const struct atlas_ezo_device atlas_ezo_devices[] = {
 	[ATLAS_CO2_EZO] = {
 		.channels = atlas_co2_ezo_channels,
 		.num_channels = 1,