msm: Add msm_hotplug driver

Neo:

* Hotplug driver by myfluxi turning cores on/off as per the load
* mpdecision needs to be disabled in ramdisk to avoid interference

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
msm_hotplug: Remove lcdnotifier events

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
msm8974: msm_hotplug: Reduce load constraints

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