Long-press power while display is off for torch

Fixups for twelve (neobuddy89)
Fixups for ten (sam3000)

Squash of:

Author: beanstown106 <nbenis106@gmail.com>
Date:   Sun Jan 17 09:14:19 2016 -0500
    policy: Long-press power while display is off for torch

    Long-press the power button while the display is off
    to turn the torchlight on and off.

    Credits:
     - Lion0738: The main hooks here:
       https://github.com/lion0738/android_frameworks_base/commit/9af2b7844a4d973c8b6c542d7937f56a24a7e5f1


     - Atlantis: The logic on where to hook into this for power button only
     - Alex Cruz: Helping and giving me some pointers along the way

    Change-Id: I14365389990eb06daaa127f5db66df45abf6c064

Author: Sam Mortimer <sam@mortimer.me.uk>
Date:   Sat Dec 24 13:22:53 2016 -0800
    [1/3] Torch long press power: add auto-off function

    Change-Id: Icdf50082324f8292859f0df8b271e730b02c84e7

Author: Pranav Vashi <neobuddy89@gmail.com>
Date:   Fri Dec 3 08:53:59 2021 +0530
    Fix long-press power for torch on Android S

    * We must define FLAG_IMMUTABLE when creating PendingIntent on Android S

    Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>

Author: Sam Mortimer <sam@mortimer.me.uk>
Date:   Tue Jan 28 00:47:27 2020 -0800
    fw/b torch: Let long press power turn torch off when screen is on.

    * When the torch is on, any subsequent long press power is almost certainly
      intended to turn the torch off (regardless of screen state).  Therefore,
      always allow long press power to toggle torch if the torch is on.

    * Tested: long press power toggles torch on/off with screen off.
              long press power toggles torch off with screen on and torch on.
              long press power brings up global actions menu with screen on and torch off.

    Change-Id: I932caa9f3be06d14408aea2ecb3a6eca73e052e0

Change-Id: I1aaf8417b865df79e8a1a8d0039b3b860a46be78