Move liblights to msm8960-common

Change-Id: I0b7e46983d40d5cbc624c237fb175f3a7fe0ad4a
overlay: Remove forceDisableHardwareKeyboard

So far not a single device has actually needed this.

Once we build we'll figure out which input device has a derped
config.
overlay: Remove unsupported config entries

Some of these may need to be put into frameworks/base, others
are definitely unnecessary in omni