tegra_mpdecision: mergeing with changes from it's msm upstream brother
Changes include:
- adding input event boost
- fixing min/max cores
- removing redundant code
- increasing delay time to 130ms
- fixing locking
- introducing scroff_single_core
- adding sysfs interface for input event boost
- gaining readability
- renaming not fitting names

Signed-off-by: Dennis Rassmann <showp1984@gmail.com>