talk/base and webrtc/base suppression had the same names for their suppressions which is not allowed. Renamed the talk/base ones as they are going away.

BUG=3379
R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/13759004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@6532 4adac7df-926f-26a2-2b94-8c16560cd09d