dt-bindings: soc: qcom: aoss-qmp: add compatible for sa8775p

Document the AOSS QMP compatible for SA8775P.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230504161755.197417-1-brgl@bgdev.pl