arm64: dts: qcom: sm8450: Use the header with DSI phy clock IDs

Use the header with DSI phy clock IDs to make code more readable.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250408-dts-qcom-dsi-phy-clocks-v2-22-73b482a6dd02@linaro.org


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