init: Pull-in changes from CM12

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
synapse: Add per-cpu tunables

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
init: Tune CPU Boost to eliminate minimal stutter

* AOSP Powerhal provides silky smooth boost for complete
  3 sec using mpdecision.
* We have switched to CPU boost. Tune it.

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
ramdisk: Clean unused files

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
synapse: Make per-cpu controls look user-friendly

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>