arm64: dts: qcom: sdm845: Add a carveout for modem metadata

Add a new carveout for modem metadata on SDM845 SoCs.
Tested-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Sibi Sankar <quic_sibis@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230117085840.32356-10-quic_sibis@quicinc.com

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

@@ -864,6 +864,12 @@ spss_mem: spss@97b00000 {
 			reg = <0 0x97b00000 0 0x100000>;
 			no-map;
 		};
+
+		mdata_mem: mpss-metadata {
+			alloc-ranges = <0 0xa0000000 0 0x20000000>;
+			size = <0 0x4000>;
+			no-map;
+		};
 	};
 
 	adsp_pas: remoteproc-adsp {
@@ -3282,6 +3288,10 @@ mpss {
 				memory-region = <&mpss_region>;
 			};
 
+			metadata {
+				memory-region = <&mdata_mem>;
+			};
+
 			glink-edge {
 				interrupts = <GIC_SPI 449 IRQ_TYPE_EDGE_RISING>;
 				label = "modem";