This patch creates a cpu temperature sensor for the jh7110 SoC.
The calibration numbers come from the openbsd driver but are reworked to produce a result in K rather than C.
The temperature is exposed as a sysctl, dev.jh7110_temp.0.temperature but I have also exposed it as dev.cpu.0.temperature because that's where you find it on a RaspberryPi so it's a lot more obvious. I think it should really only be in one place but don't know where that should be.