hwmon/lm90: Add support for the Maxim MAX6680/MAX6681

Signed-off-by: Rainer Birkenmaier <rainer.birkenmaier@siemens.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 1d9be07..d1c6be9 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -365,8 +365,8 @@
 	depends on I2C
 	help
 	  If you say yes here you get support for National Semiconductor LM90,
-	  LM86, LM89 and LM99, Analog Devices ADM1032 and Maxim MAX6657 and
-	  MAX6658 sensor chips.
+	  LM86, LM89 and LM99, Analog Devices ADM1032 and Maxim MAX6657,
+	  MAX6658, MAX6659, MAX6680 and MAX6681 sensor chips.
 
 	  The Analog Devices ADT7461 sensor chip is also supported, but only
 	  if found in ADM1032 compatibility mode.