Unreviewed EFL gardening.

Mark several webgl tests as flaky.
Mark several ref tests as failing (started between r148032 and r148102).

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

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@148844 268f45cc-cd09-0410-ab3c-d52691b4dbfc