Update notes for submitted changes

* Bluetooth: Stack certification.
* Bluetooth: A2DP SINK changes for audiofocus
* Bluetooth : HAL change for wake state change callback
* Bluetooth: support for a2dp sink
* Bluetooth: HAL Changes for LPP and extended LE scan
* Bluetooth: HID: Add support for HID Device in HAL
* libhardware: Add fix for offload playback.