arm64: dts: qcom: sc8280xp: Hook up PDC as wakeup-parent of TLMM

Some TLMM pins are wakeup-capable. Describe the relationship between
these two peripherals to enable this functionality.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230811-topic-tlmm_wakeup-v1-3-5616a7da1fff@linaro.org


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