boot: add missing icon

Signed-off-by: Blechd0se <alex.christ@hotmail.de>
cpu: thread should sleep longer

In some circumstance it was possible, that the
new governor parameter list won't show, because
the kernel was to slow to update the dictionaries.

Fix this with a longer sleep for the thread.

Also disable some things in settings, so users won't
be confused.

Signed-off-by: Blechd0se <alex.christ@hotmail.de>
Version 0.9.6

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