misc: add thermal control

This time directly with the set on boot feature,
since its a simple change.

Signed-off-by: Blechd0se <alex.christ@hotmail.de>
gpu: add gpu overclock for 3.0 Kernel

With the 3.0 Kernel for our Defy, we need a new sysfs entry.
Also i believe there was a bug for the set on boot function
for all ohter devices.
Fix that and also made it a bit cleaner.

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