arm64: dts: qcom: sc8180x: Add RPMh sleep stats

Add the sleep stats node to enable peeking at the power collapse reports
coming from the AOSS.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20231230-topic-8180_more_fixes-v1-10-93b5c107ed43@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm64/boot/dts/qcom/sc8180x.dtsi

@@ -3270,6 +3270,11 @@ aoss_qmp: power-controller@c300000 {
 			#power-domain-cells = <1>;
 		};
 
+		sram@c3f0000 {
+			compatible = "qcom,rpmh-stats";
+			reg = <0x0 0x0c3f0000 0x0 0x400>;
+		};
+
 		spmi_bus: spmi@c440000 {
 			compatible = "qcom,spmi-pmic-arb";
 			reg = <0x0 0x0c440000 0x0 0x0001100>,