Update notes for submitted changes

* httplive: fix issues during httplive streaming seek
* libstagefright: Disable smoothstreaming for secure playback
* stagefright: Do not drop encoded frames when writer is paused
* audioflinger: remove wake lock implementation from APS
* stagefright: avoid crash while seeking MKV content
* stagefright: More custodial engineering
* libstagefright: Don't invoke FFMPEG for MP3
* stagefright: fix offloading HE-AAC sampling rate.
* mp3dec: Hide legacy stuff
* frameworks/av : Add Null check for Audio Track
* stagefright: Fix the input channel count
* Added support to query ACodec whether adaptive playback is enabled.
* RTSP: Don't post AUTimeout check during pause when EOS is nearing
* Set the correct audio bit rate for camera recorded content
* accelerate camera recording start up speed
* Fix for getPosition after seek
* audioflinger: Ensure SRS effects are applied on active tracks
* audio:Avoid AudioTrackThread if Track creation fails