arm64: dts: qcom: sm8650: add ADSP GPR

Add the ADSP Generic Packet Router (GPR) device node as part of audio
subsystem in Qualcomm SM8650 SoC.

Cc: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231204155746.302323-1-krzysztof.kozlowski@linaro.org


Signed-off-by: Bjorn Andersson <andersson@kernel.org>