hwmon: (it87) Add IT8728F support

Until we get a datasheet for the IT8728F, treat it as fully compatible
with the IT8721F, as it seems to work reasonably well.

This closes kernel bug #27262.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index f468bbb..0226040 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -474,8 +474,8 @@
 	select HWMON_VID
 	help
 	  If you say yes here you get support for ITE IT8705F, IT8712F,
-	  IT8716F, IT8718F, IT8720F, IT8721F, IT8726F and IT8758E sensor
-	  chips, and the SiS960 clone.
+	  IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F and IT8758E
+	  sensor chips, and the SiS960 clone.
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called it87.