HID: make Stantum driver standalone config option

Analogically to commit "HID: make 3M PCT touchscreen driver
standalone config option", remove the dependency of Stantum
driver on CONFIG_EMBEDDED, as it is a standalone driver rather
than device quirk.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/Kconfig

@@ -248,7 +248,7 @@ config HID_SONY
 	Support for Sony PS3 controller.
 
 config HID_STANTUM
-	tristate "Stantum" if EMBEDDED
+	tristate "Stantum"
 	depends on USB_HID
 	---help---
 	Support for Stantum multitouch panel.