iio: accel: Add support for the h3lis331dl accelerometer

This commit adds support for STMicroelectronics h3lis331dl high-g
accelerometer. The datasheet for this device can be found here:

http://www.st.com/web/en/resource/technical/document/
datasheet/DM00053090.pdf

Signed-off-by: Tiberiu Breana <tiberiu.a.breana@intel.com>
Reviewed-by: Denis Ciocca <denis.ciocca@st.com>
Acked-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c
index 294a32f..7333ee9 100644
--- a/drivers/iio/accel/st_accel_i2c.c
+++ b/drivers/iio/accel/st_accel_i2c.c
@@ -76,6 +76,10 @@
 		.compatible = "st,lis2dh12-accel",
 		.data = LIS2DH12_ACCEL_DEV_NAME,
 	},
+	{
+		.compatible = "st,h3lis331dl-accel",
+		.data = H3LIS331DL_DRIVER_NAME,
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, st_accel_of_match);