modify arguments of Dispatcher.announce_update

- 'pname' argument is not needed
- change 'modulename' argument to 'moduleobj'
  (needed for further change)

Change-Id: Ib21f8ad06d9b2be4005ff3513088a85e29785c94
Reviewed-on: https://forge.frm2.tum.de/review/c/secop/frappy/+/32744
Tested-by: Jenkins Automated Tests <pedersen+jenkins@frm2.tum.de>
Reviewed-by: Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>
Reviewed-by: Markus Zolliker <markus.zolliker@psi.ch>

frappy/protocol/dispatcher.py

@@ -93,10 +93,10 @@ class Dispatcher:
         for conn in listeners:
             conn.send_reply(msg)
 
-    def announce_update(self, modulename, pname, pobj):
+    def announce_update(self, moduleobj, pobj):
         """called by modules param setters to notify subscribers of new values
         """
-        self.broadcast_event(make_update(modulename, pobj))
+        self.broadcast_event(make_update(moduleobj.name, pobj))
 
     def subscribe(self, conn, eventname):
         self._subscriptions.setdefault(eventname, set()).add(conn)