AE: Fix menu sounds by decreasing buffer(max 200 ms) and periodSize(50 ms)
[cec] don't do another device scan when opening a connection to the adapter, just use the scan results that we already got. also fixes the wrong device name being opened when trying to connect to an RPi
Merge pull request #2382 from fritsch/ae-clip-buffer

AE: Fix menu sounds decreasing buffer(max 200 ms) and periodSize(50 ms)