iio:magnetometer:mag3110: Fix initialization of ctrl_reg1

DR bits need to be shifted; since MAG3110_CTRL_DR_DEFAULT is
zero, the change has no effect

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/drivers/iio/magnetometer/mag3110.c b/drivers/iio/magnetometer/mag3110.c
index 8b77782..1b2df75 100644
--- a/drivers/iio/magnetometer/mag3110.c
+++ b/drivers/iio/magnetometer/mag3110.c
@@ -338,7 +338,7 @@
 	indio_dev->num_channels = ARRAY_SIZE(mag3110_channels);
 	indio_dev->available_scan_masks = mag3110_scan_masks;
 
-	data->ctrl_reg1 = MAG3110_CTRL_DR_DEFAULT;
+	data->ctrl_reg1 = MAG3110_CTRL_DR_DEFAULT << MAG3110_CTRL_DR_SHIFT;
 	ret = i2c_smbus_write_byte_data(client, MAG3110_CTRL_REG1,
 		data->ctrl_reg1);
 	if (ret < 0)