name change
Revert "Sweep2Wake with start/end sysfs"

This reverts commit 9cb274c2b0ee64d3a6cb4fa42599d4705b32ec88.
Sweep2Wake with start and end settings.

start and end button sysfs by chad goodman
modified for the rezound by dsb
MM: Screen off Writeback

every 500ms the writeback daemon kicks in and flushes the dirty pages into disk. Thats not very pleasant for performance and *maybe* battery. This patch disables the writeback function while the screen is on, and enables it back when the screen is off to flush all the dirty pages. In my real world usage testing I notice a slight bump in smoothness and performance while using the device.

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>