sched: set mc_power_savings=2
this feature packs tasks together and try to bind them to cpu0, which in theory will let cpu1 idle longer, thus improving battery life.

Info: http://elinux.org/images/1/1d/Comparing_Power_Saving_Techniques_For_Multicore_ARM_Platforms.pdf
Signed-off-by: GuneetAtwal <harjinder767@gmail.com>