EOSM audio meters fix
Created originally on Bitbucket by daniel_fort (Daniel Fort)
Was already merged in Bitbucket before import, marked as merged by the import user
This issue is similar to the on in the 700D (commit 08720b28c58d) where the audio meters stopped working after recording the first clip. Only in this case StopASIFDMAADC is still needed.
This change basically puts the EOSM back the way it was before commit f9c3d6e7f8ee on the crop_rec_4k branch. Only now we're keeping track of the proper address for SoundDevShutDownIn -- though it needed to be commented out for now. Maybe the new sound code by @g3gg0 will someday fix it, more reason to keep track of the correct stub addresses.