dt-bindings: mailbox: qcom-ipcc: Add GPDSP0 and GPDSP1 clients

Add GPDSP0 and GPDSP1 clients for SA8775p platform.

Signed-off-by: Tengfei Fan <quic_tengfan@quicinc.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20240805-topic-sa8775p-iot-remoteproc-v4-2-86affdc72c04@linaro.org


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