[Qt] Unreviewed gardening.

* platform/qt/TestExpectations: Skipped some failing tests.
* platform/qt/fast/borders/rtl-border-04-expected.png: Updated after r147588.
* platform/qt/fast/borders/rtl-border-04-expected.txt: Updated after r147588.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@147616 268f45cc-cd09-0410-ab3c-d52691b4dbfc