[EFL] Gardening.

Now unskip a few compositing-related tests which are not failing
anymore.

* platform/efl-wk2/TestExpectations:
* platform/efl/TestExpectations:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@148012 268f45cc-cd09-0410-ab3c-d52691b4dbfc