Advance Red Bear runtime services and tools

local/recipes/system/redbear-greeter/source/ui/main.cpp

@@ -2,11 +2,15 @@
 #include <QQmlApplicationEngine>
 #include <QQmlContext>
 #include <QQuickStyle>
+#include <QQuickWindow>
 
 #include "greeter_backend.h"
 
 int main(int argc, char *argv[]) {
     qputenv("QT_QUICK_CONTROLS_STYLE", QByteArrayLiteral("Basic"));
+    qputenv("QSG_RHI_BACKEND", QByteArrayLiteral("software"));
+    qputenv("QT_QUICK_BACKEND", QByteArrayLiteral("software"));
+    QQuickWindow::setGraphicsApi(QSGRendererInterface::Software);
 
     QGuiApplication app(argc, argv);
     QQuickStyle::setStyle(QStringLiteral("Basic"));