arm64: tegra: Add SOR power-domain for Tegra210

Add node for SOR power-domain for Tegra210 and populate the SOR
power-domain phandle for DPAUX, DSI, MIPI-CAL and SOR and nodes that are
dependent on this power-domain.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>