dix: don't set time to CurrentTime in DeviceChangedEvents.

CurrentTime is used by clients to skip setting the time, but not by the
server.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>

dix/devices.c

@@ -2352,7 +2352,7 @@ RecalculateMasterButtons(DeviceIntPtr slave)
 
         event.header = ET_Internal;
         event.type = ET_DeviceChanged;
-        event.time = CurrentTime;
+        event.time = GetTimeInMillis();
         event.deviceid = master->id;
         event.flags = DEVCHANGE_POINTER_EVENT | DEVCHANGE_DEVICE_CHANGE;
         event.buttons.num_buttons = maxbuttons;