hwmon: (f71882fg) Document all supported devices

The list of supported devices was not always well documented in all
places. Clarify and list all devices in documentation, Kconfig and
the driver itself.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c
index 222c7f4..2987904 100644
--- a/drivers/hwmon/f71882fg.c
+++ b/drivers/hwmon/f71882fg.c
@@ -114,7 +114,7 @@
 	"f71862fg",
 	"f71869", /* Both f71869f and f71869e, reg. compatible and same id */
 	"f71882fg",
-	"f71889fg",
+	"f71889fg", /* f81801u too, same id */
 	"f71889ed",
 	"f8000",
 };