arm64: dts: qcom: sm8450: add display clock controller

Add device node for display clock controller on Qualcomm SM8450 platform

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220908222850.3552050-5-dmitry.baryshkov@linaro.org