tests: ecore: add some debug for ecore timer test case

This tests fails on Jenkins from time to time. The timeout is to big. Adding
some debug here top see how far we are off when this happens.

src/tests/ecore/ecore_test_timer.c

@@ -182,6 +182,7 @@ _ecore_promise_quit(void *data, void *value)
    double *start = value;
    double delta = ecore_loop_time_get() - *start;
 
+   fprintf(stderr, "Ecore promise timeout took %f (should be <= 0.01)\n", delta - 0.2);
    fail_if(delta - 0.2 > 0.01);
 
    *bob = EINA_TRUE;