bacon: Add LED overlays

Change-Id: I48dad533cefa6721d3c316025080de5bea9db19d
bacon: Audio output latency optimization

 * Bring audio output latency down to 9ms

Change-Id: I30fe1cd434a75f18bf030371cf1da6e72a5e351e
Merge remote-tracking branch 'aokp/kitkat' into sm-4.4