[EFL] Mark fast/regions/seamless-iframe-flowed-into-regions.html failure
https://bugs.webkit.org/show_bug.cgi?id=110283

Unreviewed. This test is added by r143256 and it is failing.

Patch by KwangYong Choi <ky0.choi@samsung.com> on 2013-02-19

* platform/efl/TestExpectations:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@143433 268f45cc-cd09-0410-ab3c-d52691b4dbfc