rq_stats: Import myfluxi's driver so PowerHAL functions
PowerHAL needs mpdecision; mpdecision needs rq_stats

Disable the hotplugging functionality so that dependencies are met, but
msm_hotplug still does what it should
Merge branch 'du44' of https://github.com/k5t4j5/android_kernel_htc_msm8974 into du44