650d/700d Maybe ok to turn back on Audio meters since many testers have reported positive feedback???

Created originally on Bitbucket by mk11174 (Mathew Kelly)

Was already merged in Bitbucket before import, marked as merged by the import user

Just another attempt to turn back on audio meters for 650d and 700d, do not want to upset the devs, just figured I would try once more since there has been positive feedback using the cam with them on for now until the audio chip is coded properly.