msm: rq_stats: small change to current cpu policy

Signed-off-by: Stefanescu Cristian <howerkraft@gmail.com>
Revert "blu_active: use cal_freq, remove target_loads"

This reverts commit ec3778e3f2689f55ce56a51b1273862ffba0882d.
sched: Compute avg_nr_running for RQ Stats

Signed-off-by: Stefanescu Cristian <howerkraft@gmail.com>
defconfig: update

Signed-off-by: Stefanescu Cristian <howerkraft@gmail.com>
sched_avg: add run queue averaging

Add code to calculate the run queue depth of a cpu and iowait
depth of the cpu.

The scheduler calls in to sched_update_nr_prod whenever there
is a runqueue change. This function maintains the runqueue average
and the iowait of that cpu in that time interval.

Whoever wants to know the runqueue average is expected to call
sched_get_nr_running_avg periodically to get the accumulated
runqueue and iowait averages for all the cpus.

Change-Id: Id8cb2ecf0ed479f090a83ccb72dd59c53fa73e0c
Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
(cherry picked from commit 0299fcaaad80e2c0ac9aa583c95107f6edc27750)
Signed-off-by: Stefanescu Cristian <howerkraft@gmail.com>

Conflicts:
	kernel/sched/Makefile
	kernel/sched/sched.h