arm64: dts: qcom: sc7180: define ipa_fw_mem node

Define the reserved memory space used for IPA firmware for the
Qualcomm SC7180 SoC.
Signed-off-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20210804210214.1891755-4-elder@linaro.orgSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

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

@@ -110,6 +110,11 @@ tz_mem: memory@80b00000 {
 			no-map;
 		};
 
+		ipa_fw_mem: memory@8b700000 {
+			reg = <0 0x8b700000 0 0x10000>;
+			no-map;
+		};
+
 		rmtfs_mem: memory@94600000 {
 			compatible = "qcom,rmtfs-mem";
 			reg = <0x0 0x94600000 0x0 0x200000>;