wasapi: Enable config tests on windows

The initial commit disabled running the wasapi config tests for unknown
reason. Re-enable them again for windows builds.

Task-number: QTBUG-59527
Change-Id: I0c8485911b49e657833376de0633fc81e3789e86
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>

src/multimedia/configure.json

@@ -275,7 +275,6 @@
         },
         "wasapi": {
             "label": "Windows Audio Services",
-            "autoDetect": "false",
             "condition": "config.win32 && tests.wasapi",
             "output": [ "privateFeature" ]
         },
@@ -319,6 +318,7 @@
                 "resourcepolicy",
                 "mmrenderer",
                 "avfoundation",
+                "wasapi",
                 "directshow",
                 "wmf",
                 {