helper: fix null-values for settingshelper

If the user has set cpu governor specific parameters
but not set a default governor, we would skip this part.

Since this is not intended, fix that and also refactoring
the code a bit.

Signed-off-by: Blechd0se <alex.christ@hotmail.de>
updater: add generic backup/restore option

This should support devices with msm/tegra/omap
chipsets for a simple backup/restore option.

Signed-off-by: Blechd0se <alex.christ@hotmail.de>
res: fix actionbar color

Signed-off-by: Blechd0se <alex.christ@hotmail.de>