fpi-device: Make possible to set a DestroyNotify for timeout data

Since GSource data can be automatically cleaned up on source destruction, we
can mimic this for the devices timeout easily as well.

Add an extra parameter, and let's use this cocci file to adapt all the
drivers like magic:

	@@
	expression e1, e2, e3, e4;
	@@
	fpi_device_add_timeout (e1, e2, e3, e4
	+  , NULL
  	)

libfprint/drivers/vfs5011.c

@@ -706,7 +706,7 @@ activate_loop (FpiSsm *ssm, FpDevice *_dev)
     case DEV_ACTIVATE_DATA_COMPLETE:
       fpi_device_add_timeout (_dev, 1,
                               fpi_ssm_next_state_timeout_cb,
-                              ssm);
+                              ssm, NULL);
 
       break;