arm64: dts: qcom: msm8998: Add firmware node

Add the firmware and scm nodes for msm8998
Signed-off-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: NAndy Gross <andy.gross@linaro.org>

arch/arm64/boot/dts/qcom/msm8998.dtsi

@@ -237,6 +237,12 @@
 		};
 	};
 
+	firmware {
+		scm {
+			compatible = "qcom,scm-msm8998";
+		};
+	};
+
 	tcsr_mutex: hwlock {
 		compatible = "qcom,tcsr-mutex";
 		syscon = <&tcsr_mutex_regs 0 0x1000>;