arm64: dts: qcom: sa8775p: 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-v1-4-5616a7da1fff@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm64/boot/dts/qcom/sa8775p.dtsi

@@ -1943,6 +1943,7 @@ tlmm: pinctrl@f000000 {
 			interrupt-controller;
 			#interrupt-cells = <2>;
 			gpio-ranges = <&tlmm 0 0 149>;
+			wakeup-parent = <&pdc>;
 		};
 
 		apps_smmu: iommu@15000000 {