Revert "Set device settings off by default, make overlay to enable"

This reverts commit 4dfb2285b3913347812775b9efa73376d4aa0d96.
Revert "Set softkeys off by default......use overlay in vendor to enable them"

This reverts commit ecb2e1dc50c9b19e99c2c31df6168fa930ca16d9.
Revert "ROMControl: Customizable Softkeys"

This reverts commit e567324a582ba1fa8d6a72a4c61efb1946d4ec22.

Change-Id: I7b857ca61264cfde728db635f5bc4660bdb6ed5e
Add hardware keys support

Should be usable... Not sure why it wasn't included in the first place...

Change-Id: Ia8beecaecf6dbfc6abbdfe044f437a6b4a848ee0
Rework Hardware keys and add double button settings - CM

Change-Id: Id6d6bcdb95c5b6483dabd8880fce456ef51632cb
Add Hardware Keys to RC

Credit/Thanks to AICP

Change-Id: I3df8162a9e208003f52bb17302ddb92cd63c053d