hwmon: (adt7475) Add VID support for the ADT7476

The ADT7476 has 5 dedicated pins for VID input, and the +12V input can
optionally be used as a 6th VID pin. Add support for VID input.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Jordan Crouse <jordan@cosmicpenguin.net>
Cc: "Darrick J. Wong" <djwong@us.ibm.com>
diff --git a/Documentation/hwmon/adt7475 b/Documentation/hwmon/adt7475
index 03be1e6..0502f2b 100644
--- a/Documentation/hwmon/adt7475
+++ b/Documentation/hwmon/adt7475
@@ -70,7 +70,7 @@
 
 ADT7476:
   * 5 voltage inputs
-  * VID support (not implemented)
+  * VID support
 
 ADT7490:
   * 6 voltage inputs