MacPro 3 have more temperature sensors than the previous MacPro's also 
the sensor THTG has been removed. This patch add supports for the newer 
temperature sensors in the MacPro3.


I have tested this on the MacPro 3 that I have and I am able to read the 
sensors. If there is any thing else that needs to be check I will be 
more than happy to test it out.

Regards,

Bharath