hid: egalax: Document the new devices in Kconfig

Add the new supported devices to the kernel menu config help text.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cc: Stephane Chatty <chatty@enac.fr>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 3052e29..401acec 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -154,7 +154,8 @@
 	tristate "eGalax multi-touch panel"
 	depends on USB_HID
 	---help---
-	Support for the eGalax dual-touch panel.
+	Support for the eGalax dual-touch panels, including the
+	Joojoo and Wetab tablets.
 
 config HID_ELECOM
 	tristate "ELECOM BM084 bluetooth mouse"