d2/apexq: in-kernel mpdecision ***(ported to D2)***

Ported from Dennis Rassmann's work on the Bricked Mako kernel. Offers
extensive battery savings and more responsive touch input boost. No need
to wait for the kernel to tell userspace there is a touch event, which
then informs mpdecision which writes to sysfs and then back to the
kernel.

Also, seriously, why do we need a blob to decide when to online and
offline a core?

Change-Id: I86f57dcae9aa3c0e574bf695b6c2c96199b333fa