Revert "mm: Add Dynamic management of dirty page writeback"

This reverts commit 9b294c9221447c88e5d408f87c9a6523955cdf0e.
revert KGSL
KGSL: Add a simple GPU governor for Adreno xxx GPU series

initial coding for a Simple GPU governor based on my own work 2 years ago
from Sensation GB kernel commit: c1ea8f64167270d67915b4d4fb00910b1c0f513f

Signed-off-by: Paul Reioux <reioux@gmail.com>
Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
KGSL: make simple govenor a selectable option, co-exist with ondemand

also removed some hardcoded values

Signed-off-by: Paul Reioux <reioux@gmail.com>
Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
KGSL: simple governor: expose tunables to sysfs interface via module_param

Signed-off-by: Paul Reioux <reioux@gmail.com>
Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
KGSL: Simple Governor: fix minor logic issue

Signed-off-by: Paul Reioux <reioux@gmail.com>
Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
KGSL: Simple Governor: some styling changes, early returns instead of assigning a val and returning in the end of the function call and change the copyright/author from the middle of the file to the header.

Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
KGSL: Simple Governor: so I kinda butchered in a good way of course the original code from faux, but the simplicity is still here. Added an history so that we can track the average do that the frequency scaling is much more proporcional to the actual GPU load rather than having is ramp up every now and then due to spurious load spike. Also remove two useless ifs.

Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
silence warning
reset this to 3.4.0 because of errors
forgot to update this