[Qt] Unreviewed gardening.

* platform/qt/TestExpectations: Skip a failing reftest after r148859.
* platform/qt/fast/borders/rtl-border-04-expected.png: Update after r148791.
* platform/qt/fast/borders/rtl-border-04-expected.txt: Update after r148791.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@148869 268f45cc-cd09-0410-ab3c-d52691b4dbfc