cpufreq: interactive: prevent the target_freq to be boosted on thread migration if the source and target cpu are the same. Also don't set the floor_freq and time on thread migration, as we don't want it to go through the min_sample_time code routine, because that's used for more sustained hispeed_freq boosts.

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
Merge branch 'nightlies' of https://github.com/franciscofranco/hammerhead into nightlies
mako_hotplug: we should care about very high load spikes so when the load
is 100% the core that is next in line is onlined, no questions asked.
It won't go through the 1s minimum time for a core to be online before
hotplug though.

hackbench -p -T:
Before: 1.816sec
After: 0.917sec

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
Merge remote-tracking branch 'upstream/nightlies' into sm-4.4