Update notes for submitted changes

* Move audio_firmware_file and /data/misc/audio entry to core sepolicy.
* Fix denials encountered while getting bugreports.
* Allow apps to execute app_data_files
* Isolate untrusted app ptys from other domains.
* Make sure exec_type is assigned to all entrypoint types.
* Start confining ueventd
* sysfs_devices_system_cpu should be a sysfs_type