blu_plug: fix powersaver_mode when screenoff to save more juice
Revert "net: wireless: bcmdhd: Set KSO enable sleep to 5ms"

This reverts commit 838c11f71afa9a752451bc31150d4200d3a9f478.
makefile: use arm-cortex_a15-linux-gnueabihf-linaro_4.9.2-2014.08 toolchain by default
blu_plug: driver is always enabled
dt2w: add doubletap2wake (disabled by default)
* Squashed, based from showp1984 and flar2 work
* Modes: 0:disabled, 1:enabled, 2:enabled fullscreen
defconfig: enable dt2w