dt-bindings: hwinfo: renesas,prr: move from soc directory

Group devices like Chip ID or SoC information under "hwinfo" directory.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220705155038.454251-1-krzysztof.kozlowski@linaro.org


Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>