memory: add fsync option

Just uses the new underlaying preferences. To be save
here we check for 'Y' and '1'.

Signed-off-by: Blechd0se <alex.christ@hotmail.de>
cpu: fix governor wont apply for offline cpus

The code only checked for online cpus, although we want
to set the governor to each available cpu.

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