ecore: Add missing since version for new ecore_loop_time_set()

Introuduced during this cycle. Note it down in doxy.

src/lib/ecore/Ecore_Common.h

@@ -1473,6 +1473,7 @@ EAPI double ecore_loop_time_get(void);
  * 
  * @see ecore_animator_custom_tick()
  * @see ecore_loop_time_get()
+ * @since 1.11
  */
 EAPI void ecore_loop_time_set(double t);