Update notes for submitted changes

* camera: Fix camera startup racing with orientation change
* camera: improve snapshot KPI
* Camera: reduce the camera button animation duration to 100ms
* Gallery2: reduce the latency between cam&camcorder switch
* Camera: Block shutter button during mode switch
* Camera: Do not create start preview thread if one thread is alive
* Camera: Fix crash during open and close camera
* Camera: Fix concurrency issues with camera messages
* Gallery2: reduce the camera switch animation duration to 200ms
* stop recording from camcorder app in case of error.
* Camera App: return after synchronized block
* Gallery2: fix the display error of camera manu when rotate it
* Camera: Fix camcorder crash during pause and resume
* Gallery2: Clear undefined buffer before first draw
* Gallery2: camera: disable all camera controls ASAP when swtich the camera
* Camera: Update storage hint in full screen state change listener.