sched: reinitialize rq->next_balance when a CPU is hot-added

Conflicts:
	arch/arm/boot/kernel
sched: Reset rq->next_interval before going idle
sched, x86: Remove broken power estimation
perflock clean up

Conflicts:
	drivers/gpu/msm/kgsl_pwrctrl.c
	drivers/usb/gadget/f_mtp.c
boost l2 cache

Conflicts:
	arch/arm/mach-msm/acpuclock-8064.c
further boost l2 cache

Conflicts:
	arch/arm/boot/kernel
further boost l2 chache

Conflicts:
	arch/arm/boot/kernel
	arch/arm/mach-msm/acpuclock-8064.c
lower l2 cache 1 freq

Conflicts:
	arch/arm/boot/kernel
lower l2 cache 1 more freq
lower l2 cache for OC freq

Conflicts:
	arch/arm/boot/kernel
	arch/arm/mach-msm/acpuclock-8064.c
lower l2 cache