iio: mlx96014: Add OF device ID table

The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.

But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.

Signed-off-by: Javier Martinez Canillas <[e-mail]>
Tested-by: Crt Mori <[e-mail]>
Acked-by: Crt Mori <[e-mail]>
Signed-off-by: Jonathan Cameron <[e-mail]>

drivers/iio/temperature/mlx90614.c

···
 };
 MODULE_DEVICE_TABLE(i2c, mlx90614_id);
 
+static const struct of_device_id mlx90614_of_match[] = {
+	{ .compatible = "melexis,mlx90614" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, mlx90614_of_match);
+
 #ifdef CONFIG_PM_SLEEP
 static int mlx90614_pm_suspend(struct device *dev)
 {
···
 static struct i2c_driver mlx90614_driver = {
 	.driver = {
 		.name	= "mlx90614",
+		.of_match_table = mlx90614_of_match,
 		.pm	= &mlx90614_pm_ops,
 	},
 	.probe = mlx90614_probe,