iio: cros_ec: Add cros_ec barometer driver

Handle the barometer sensor presented by the ChromeOS EC Sensor hub.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Enric Balletbo Serra <enric.balletbo@collabora.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/include/linux/mfd/cros_ec_commands.h b/include/linux/mfd/cros_ec_commands.h
index 1683003..098c350 100644
--- a/include/linux/mfd/cros_ec_commands.h
+++ b/include/linux/mfd/cros_ec_commands.h
@@ -1441,7 +1441,8 @@ enum motionsensor_type {
 	MOTIONSENSE_TYPE_PROX = 3,
 	MOTIONSENSE_TYPE_LIGHT = 4,
 	MOTIONSENSE_TYPE_ACTIVITY = 5,
-	MOTIONSENSE_TYPE_MAX
+	MOTIONSENSE_TYPE_BARO = 6,
+	MOTIONSENSE_TYPE_MAX,
 };
 
 /* List of motion sensor locations. */