iio: si7005: Add device tree support

This device supports ACPI detection but lacks of the device tree
counterpart. Add device tree support.

Signed-off-by: Javier Carrasco <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jonathan Cameron <[e-mail]>

drivers/iio/humidity/si7005.c

···
 };
 MODULE_DEVICE_TABLE(i2c, si7005_id);
 
+static const struct of_device_id si7005_dt_ids[] = {
+	{ .compatible = "silabs,si7005" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, si7005_dt_ids);
+
 static struct i2c_driver si7005_driver = {
 	.driver = {
 		.name	= "si7005",
+		.of_match_table = si7005_dt_ids,
 	},
 	.probe = si7005_probe,
 	.id_table = si7005_id,