edje_entry: don't send a 'changed' signal if Control is lock

This patch is avoid extra 'change' signals from edje_entry to
elm_entry.
Basically the entry fields does not react to keys pressed with
modificator 'Ctrl'. I was test on Windows 7, MacOS 10.12 and Unity
(GTK+) and they all have similar behavior - keys with 'Ctrl' are
ignored. So this patch make expected beharior for elm_entry
(edje_entry).

src/lib/edje/edje_entry.c

@@ -2260,6 +2260,7 @@ _edje_key_down_cb(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED,
         Eina_Bool free_string = EINA_FALSE;
         Ecore_Compose_State state;
 
+        if (control) goto end;
         if (!en->composing)
           {
              _compose_seq_reset(en);