cpufreq: Disable cpu-boost

So this is why my battery was draining so quickly... Input-boosting is overkill on MSM8974.

Signed-off-by: Sultanxda <sultanxda@gmail.com>
ramdisk: Remove cpu-boost
autosmp: Adjust hotplug thresholds for better battery life

Signed-off-by: Sultanxda <sultanxda@gmail.com>