Add EglDisplay resource to the QNX platform plugin

QtWayland requires this resource.

Change-Id: I41f83d93582bfe7c471208e8ca844e24dc2c6da5
Reviewed-by: Dan Cape <dcape@qnx.com>
Reviewed-by: Johan Helsing <johan.helsing@qt.io>

src/plugins/platforms/qnx/qqnxnativeinterface.cpp

@@ -94,6 +94,11 @@ void *QQnxNativeInterface::nativeResourceForIntegration(const QByteArray &resour
     if (resource == "screenContext")
         return m_integration->screenContext();
 
+#if QT_CONFIG(opengl)
+    if (resource.toLower() == "egldisplay")
+        return m_integration->eglDisplay();
+#endif
+
     return 0;
 }