Overlay: Bring back Torch tile

Brings the Torch tile back to QuickSettings panel
Frameworks: List the HW keys present
Overlay: Enable support for VRW & home button wake
Move 'has LED flash' to frameworks

Used to activate the QS Torch tile
We don't specify this here anymore.
Corresponding frameworks overlay was added to activate the tile.
Revert: e20169c66173a30a1f2c2b74d3cfa65e2745c2d9

Zero brightness bug was fixed via ALS curve edits