Fix issues so clang can compile OpenMAX DL library and tests. BUG=2976 R=andrew@webrtc.org, turaj@webrtc.org Review URL: https://webrtc-codereview.appspot.com/9209004 git-svn-id: http://webrtc.googlecode.com/svn/deps/third_party/openmax@5810 4adac7df-926f-26a2-2b94-8c16560cd09d