arm64: dts: qcom: sc7180: Add IMEM and pil info regions

Add IMEM and pil info DT nodes for SC7180 SoC which will help in the
post-mortem debug.
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
[bjorn: Dropped dload-mode subnode, as no agreement was reached on this binding]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/39064a2db95ccc2cb5eef003569bef2de651c8ed.1628757036.git.saiprakash.ranjan@codeaurora.org

arch/arm64/boot/dts/qcom/sc7180.dtsi

@@ -3245,6 +3245,21 @@ spmi_bus: spmi@c440000 {
 			cell-index = <0>;
 		};
 
+		imem@146aa000 {
+			compatible = "simple-mfd";
+			reg = <0 0x146aa000 0 0x2000>;
+
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			ranges = <0 0 0x146aa000 0x2000>;
+
+			pil-reloc@94c {
+				compatible = "qcom,pil-reloc-info";
+				reg = <0x94c 0xc8>;
+			};
+		};
+
 		apps_smmu: iommu@15000000 {
 			compatible = "qcom,sc7180-smmu-500", "arm,mmu-500";
 			reg = <0 0x15000000 0 0x100000>;