defconfig: add powersave and switch to high performance ondemand

Signed-off-by: Paul Reioux <reioux@gmail.com>
defconfig: add powersave and switch to high performance ondemand (ATT)

Signed-off-by: Paul Reioux <reioux@gmail.com>
add powersave and switch to high performance ondemand (VZW)

Signed-off-by: Paul Reioux <reioux@gmail.com>