[Qt] REGRESSION (r148975) shape-inside-percentage.html and shape-inside-overflow-fixed-dimensions.html are failing after r148975
https://bugs.webkit.org/show_bug.cgi?id=115053

Unreviewed gardening.

* platform/qt/TestExpectations: Skip failing tests.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@148986 268f45cc-cd09-0410-ab3c-d52691b4dbfc