arm64: dts: qcom: msm8992: Add a SCM node

Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Link: https://lore.kernel.org/r/20200625182118.131476-7-konradybcio@gmail.comSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch/arm64/boot/dts/qcom/msm8992.dtsi

@@ -118,6 +118,12 @@ sleep_clk: sleep_clk {
 		};
 	};
 
+	firmware {
+		scm {
+			compatible = "qcom,scm-msm8994", "qcom,scm";
+		};
+	};
+
 	memory {
 		device_type = "memory";
 		/* We expect the bootloader to fill in the reg */