ARM: tegra: tamonten: Add NCT1008 temperature sensor

The Tamonten SOM has an ON Semiconductor NCT1008 connected to the DVC
bus which is used to measure the ambient (local) temperature as well as
the on-die (remote) temperature.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Stephen Warren <swarren@nvidia.com>