arm64: dts: qcom: qdu1000: Add IMEM and PIL info region

Add a simple-mfd representing IMEM on QDU1000 and define the PIL
relocation info region, so that post mortem tools will be able
to locate the loaded remoteprocs.
Signed-off-by: Komal Bajaj <quic_kbajaj@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230522151206.22654-3-quic_kbajaj@quicinc.com

arch/arm64/boot/dts/qcom/qdu1000.dtsi

@@ -1102,6 +1102,19 @@ qup_spi15_cs: qup-spi15-cs-state {
 			};
 		};
 
+		sram@14680000 {
+			compatible = "qcom,qdu1000-imem", "syscon", "simple-mfd";
+			reg = <0 0x14680000 0 0x1000>;
+			ranges = <0 0 0x14680000 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			pil-reloc@94c {
+				compatible = "qcom,pil-reloc-info";
+				reg = <0x94c 0xc8>;
+			};
+		};
+
 		apps_smmu: iommu@15000000 {
 			compatible = "qcom,qdu1000-smmu-500", "qcom,smmu-500", "arm,mmu-500";
 			reg = <0x0 0x15000000 0x0 0x100000>;