sensor: lis2dw12: handle SENSOR_CHAN_ALL in sample_fetch callback

Handle `SENSOR_CHAN_ALL` case of the sample_fetch callback of the
lis2dw12 driver. Without this, `sensor_sample_fetch()` does not work
correctly for this device, e.g. rendering the rtio and the sensor shell
unusable.

Signed-off-by: Ruben Völl <ruben.voell@sevenlab.de>

Author: rvoell-7lab

drivers/sensor/st/lis2dw12/lis2dw12.c

@@ -408,6 +408,10 @@ static int lis2dw12_sample_fetch(const struct device *dev,
 	case SENSOR_CHAN_DIE_TEMP:
 		lis2dw12_sample_fetch_temp(dev);
 		break;
+	case SENSOR_CHAN_ALL:
+		lis2dw12_sample_fetch_accel(dev);
+		lis2dw12_sample_fetch_temp(dev);
+		break;
 	default:
 		LOG_DBG("Channel not supported");
 		return -ENOTSUP;