long press lock screen lock icon to TORCH

Is it possible to do? Very handy for enabling torch
https://github.com/temasek/android_frameworks_base/commit/a09411cd16d2c6f073969540b072e5647bbc6b44
https://github.com/temasek/android_packages_apps_Settings/commit/4482b560993469baa8821ad0c76a41c4d999934c
