OmniGears: fix remove of button lights config

We must also check config_button_brightness_support
and while we are here remove that obsolete dependency
of hw key disable to show navbar. with the qs tile you
can always disable hw buttons so why limit it here

Also, remove HW keys disable config for devices with only
volume rocker but no dedicated HW home button/nav keys.

Change-Id: I27209f1efd1d8358c7c88a7bdc64fe62b5a3ca99
2 files changed
tree: b0745083d194c0245fc6484d908d8271efc8a138
  1. res/
  2. src/