arm64: dts: qcom: msm8998: Fix 'out-ports' is a required property

out-ports is a required property for coresight ETM. Add out-ports for
ETM nodes to fix the warning.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
Link: https://lore.kernel.org/r/20231210072633.4243-4-quic_jinlmao@quicinc.comSigned-off-by: Bjorn Andersson <andersson@kernel.org>

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

@@ -2021,12 +2021,14 @@ etm5: etm@7c40000 {
 
 			cpu = <&CPU4>;
 
+			out-ports {
 				port {
 					etm4_out: endpoint {
 						remote-endpoint = <&apss_funnel_in4>;
 					};
 				};
 			};
+		};
 
 		etm6: etm@7d40000 {
 			compatible = "arm,coresight-etm4x", "arm,primecell";
@@ -2038,12 +2040,14 @@ etm6: etm@7d40000 {
 
 			cpu = <&CPU5>;
 
+			out-ports {
 				port {
 					etm5_out: endpoint {
 						remote-endpoint = <&apss_funnel_in5>;
 					};
 				};
 			};
+		};
 
 		etm7: etm@7e40000 {
 			compatible = "arm,coresight-etm4x", "arm,primecell";
@@ -2055,12 +2059,14 @@ etm7: etm@7e40000 {
 
 			cpu = <&CPU6>;
 
+			out-ports {
 				port {
 					etm6_out: endpoint {
 						remote-endpoint = <&apss_funnel_in6>;
 					};
 				};
 			};
+		};
 
 		etm8: etm@7f40000 {
 			compatible = "arm,coresight-etm4x", "arm,primecell";
@@ -2072,12 +2078,14 @@ etm8: etm@7f40000 {
 
 			cpu = <&CPU7>;
 
+			out-ports {
 				port {
 					etm7_out: endpoint {
 						remote-endpoint = <&apss_funnel_in7>;
 					};
 				};
 			};
+		};
 
 		sram@290000 {
 			compatible = "qcom,rpm-stats";