- Add support for setting the fan control mode to manual or automatic - Add support for adjusting the fan speed if the fan control mode is manual
- Add support for setting the fan control mode to manual or automatic
- Add support for adjusting the fan speed if the fan control mode is manual

Documentation for the relevant embedded controller register was obtained from
http://www.thinkwiki.org/wiki/Patch_for_controlling_fan_speed

Tested on:	R51  by Fabian Keil
		T41p by markus
Requested by:	many
Approved by:	philip
MFC after:	1 week

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