arm64: dts: qcom: setup PDC as the wakeup parent for TLMM on SDM845

PDC always-on interrupt controller can detect certain GPIOs even when
the TLMM interrupt controller is powered off. Link the PDC as TLMM's
wakeup parent.
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1573855915-9841-12-git-send-email-ilina@codeaurora.orgSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch/arm64/boot/dts/qcom/sdm845.dtsi

@@ -1447,6 +1447,7 @@ tlmm: pinctrl@3400000 {
 			interrupt-controller;
 			#interrupt-cells = <2>;
 			gpio-ranges = <&tlmm 0 0 150>;
+			wakeup-parent = <&pdc_intc>;
 
 			qspi_clk: qspi-clk {
 				pinmux {