hwmon: New AD7416, AD7417 and AD7418 driver

A driver for the Analog Devices AD7416, AD7417 and AD7418 chips.

Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index 3378067..d83f238 100644
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -14,6 +14,7 @@
 obj-$(CONFIG_SENSORS_W83791D)	+= w83791d.o
 
 obj-$(CONFIG_SENSORS_ABITUGURU)	+= abituguru.o
+obj-$(CONFIG_SENSORS_AD7418)	+= ad7418.o
 obj-$(CONFIG_SENSORS_ADM1021)	+= adm1021.o
 obj-$(CONFIG_SENSORS_ADM1025)	+= adm1025.o
 obj-$(CONFIG_SENSORS_ADM1026)	+= adm1026.o