dt-bindings: Add Tegra264 clock and reset definitions

The BPMP firmware on Tegra264 defines a set of IDs for clock and reset
resources. These are not enumerations but provided by hardware, and 0 is
a reserved value, hence the numbering starts at 1.

Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

Author: thierryreding