dt-bindings: arm: rockchip: add RADXA ROCK 5T

dt-bindings: arm: rockchip: add RADXA ROCK 5T

The RADXA ROCK 5T is a single board computer aimed at industrial use.
Its design is similar to the ROCK 5B+, but it does away with one of the
USB-C PD inputs, and uses one combination USB3/SATA/PCIe PHY for an
additional second 2.5G PCIe network card instead of USB3.

Link: https://radxa.com/products/rock5/5t/
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Link: https://lore.kernel.org/r/20250520-add-rock5t-v2-1-1f1971850a20@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>