Support asynchronous compaction in lowmemorykiller.

Conflicts:

	drivers/staging/android/lowmemorykiller.c

Change-Id: If05b1445744a6908d201dfcc471b23ca6edd5ee0
msm_serial_hs: let bluesleep control uart clock

Change-Id: Ic2664734504085378099c14fe428cf8db2b23725
cpufreq: Manage only online cpus

cpufreq core doesn't manage offline cpus and if driver->init() has returned
mask including offline cpus, it may result in unwanted behavior by cpufreq core
or governors.

We need to get only online cpus in this mask. There are two places to fix this
mask, cpufreq core and cpufreq driver. It makes sense to do this at common place
and hence is done in core.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>