arm64: dts: qcom: sm8550: add QUP serial engines OPP tables

arm64: dts: qcom: sm8550: add QUP serial engines OPP tables

The QUP Serial Engines requires different power domain level
depending on their working frequency, add the required OPP
table with the level associated with all possible frequencies.

For the "I2C Hub" serial engines, sinse they only support a
single Operating Point, only add a single power domain level
property.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250115-topic-sm8x50-upstream-dt-icc-update-v1-4-eaa8b10e2af7@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>