[GStreamer][Quirks] detect brcm audio sink by testing object type name

https://bugs.webkit.org/show_bug.cgi?id=276248

Reviewed by Philippe Normand.

playbin3 doesn't auto select platform audio sink, letting playsink to use autoaudiosink. The sink name created by
autoaudiosink differs from one expected here, resulting in different behavior for playbin2 vs. playbin3.

Patch by Eugene Mutavchi <Ievgen_Mutavchi@comcast.com>.

* Source/WebCore/platform/gstreamer/GStreamerQuirkBroadcom.cpp:
(WebCore::GStreamerQuirkBroadcom::configureElement):

Canonical link: https://commits.webkit.org/280684@main

Author: calvaris

Source/WebCore/platform/gstreamer/GStreamerQuirkBroadcom.cpp

@@ -39,7 +39,7 @@ GStreamerQuirkBroadcom::GStreamerQuirkBroadcom()
 
 void GStreamerQuirkBroadcom::configureElement(GstElement* element, const OptionSet<ElementRuntimeCharacteristics>& characteristics)
 {
-    if (g_str_has_prefix(GST_ELEMENT_NAME(element), "brcmaudiosink"))
+    if (!g_strcmp0(G_OBJECT_TYPE_NAME(element), "Gstbrcmaudiosink"))
         g_object_set(G_OBJECT(element), "async", TRUE, nullptr);
     else if (g_str_has_prefix(GST_ELEMENT_NAME(element), "brcmaudiodecoder")) {
         // Limit BCM audio decoder buffering to 1sec so live progressive playback can start faster.