msm: hotplug: Tune msm hotplug

* Terminate load threshold table - https://github.com/myfluxi/kernel_msm/commit/0d19811cb40dacb7ce669c05dc9115340d0bd25a
* Change attribute names. Thanks @Dorimanx
* Lower load thresholds for more interactive response.
* Change default boosted CPU to 1.

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>