arm: dts: imx7: Fix error in coresight TPIU graph connection

OF graph endpoint connections must be bidirectional and dtc warn if they
are not. i.MX7 based DTs have an error and generate
warnings:

arch/arm/dts/imx7d-sdb.dtb: Warning (graph_endpoint):
/replicator/ports/port@0/endpoint: graph connection to node
'/soc/tpiu@30087000/port/endpoint' is not bidirectional
arch/arm/dts/imx7d-sdb.dtb: Warning (graph_endpoint):
/soc/tpiu@30087000/port/endpoint: graph connection to node
'/replicator/ports/port@1/endpoint' is not bidirectional
Signed-off-by: NIlko Iliev <iliev@ronetix.at>

arch/arm/dts/imx7s.dtsi

@@ -323,7 +323,7 @@
 			port {
 				tpiu_in_port: endpoint {
 					slave-mode;
-					remote-endpoint = <&replicator_out_port1>;
+					remote-endpoint = <&replicator_out_port0>;
 				};
 			};
 		};