General Performance Improvements + Try to fix black screen issues for ws2401

Try to fix blackscreen issues for ws2401
overall performance improvements (i/o speed & latency, optimized functions, sync, wireless, etc)
bcmdhd: filter multicast packets during suspend (better battery/more deep sleep)
lzo updates from mainline kernel (although we aren't using lzo, it's good to have)
frandom added, init.d script in pull request in common device tree
a few memory leaks fixed (more ram)