osd: cleanup: Specify both template types for create_request()

Code consistency

Signed-off-by: David Zafman <dzafman@redhat.com>
(cherry picked from commit cecdc49)

src/osd/OSD.cc

@@ -5554,7 +5554,7 @@ void OSD::ms_fast_dispatch(Message *m)
     m->put();
     return;
   }
-  OpRequestRef op = op_tracker.create_request<OpRequest>(m);
+  OpRequestRef op = op_tracker.create_request<OpRequest, Message*>(m);
   {
 #ifdef WITH_LTTNG
     osd_reqid_t reqid = op->get_reqid();