Manually append debug_bridge to pl-conf.dtsi

* As we don't use block design, this IP is not detected automatically.
* The IP is located at a fixed address on the bus.

recipes-bsp/device-tree/files/damc-fmc2zup/pl-conf.dtsi

+
+
+/ {
+
+    debug_bridge_0@0xA0820000 {
+        #address-cells = <1>;
+        #size-cells = <1>;
+        compatible = "xlnx,xvc";
+        reg = < 0xA0820000 0x20 >;
+    };
+
+
+};