Revert "f4pga/platforms/xc7a50t: override the path to arty.xdc" (#563)

.github/sftest.json

@@ -14,7 +14,7 @@
         "default_target": "bitstream",
         "dependencies": {
             "xdc": [
-                "arty200.xdc"
+                "xc7/counter_test/arty200.xdc"
             ],
             "build_dir": "build/arty_200"
         }
@@ -23,7 +23,7 @@
         "default_target": "bitstream",
         "dependencies": {
             "xdc": [
-                "arty.xdc"
+                "xc7/counter_test/arty.xdc"
             ],
             "build_dir": "build/arty100"
         }
@@ -33,7 +33,7 @@
         "dependencies": {
             "build_dir": "build/arty_35",
             "xdc": [
-                "arty.xdc"
+                "xc7/counter_test/arty.xdc"
             ]
         },
         "values": {

f4pga/platforms/xc7a50t.json

@@ -81,7 +81,7 @@
                     "OUT_EBLIF": "${:eblif}",
                     "PYTHON3": "${python3}",
                     "UTILS_PATH": "${shareDir}/scripts",
-                    "INPUT_XDC_FILES": "xc7/counter_test/arty.xdc"
+                    "INPUT_XDC_FILES": "${:xdc}"
                 }
             }
         },