tests: Correct ATSPI role check for popup.

ctxpopup is using ELM_ATSPI_ROLE_POPUP_MENU while the normal popup uses
ELM_ATSPI_ROLE_NOTIFICATION.

ref T2028

legacy/elementary/src/tests/elm_test_popup.c

@@ -18,7 +18,7 @@ START_TEST (elm_atspi_role_get)
    popup = elm_popup_add(win);
    eo_do(popup, role = elm_interface_atspi_accessible_role_get());
 
-   ck_assert(role == ELM_ATSPI_ROLE_POPUP_MENU);
+   ck_assert(role == ELM_ATSPI_ROLE_NOTIFICATION);
 
    elm_shutdown();
 }