QSplashScreen: Pass the layout direction set on widget to the painter

Change-Id: I6adc9f6fd77b6e9f9387393884e13285f4452018
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>

src/widgets/widgets/qsplashscreen.cpp

@@ -343,6 +343,7 @@ bool QSplashScreen::event(QEvent *e)
     if (e->type() == QEvent::Paint) {
         Q_D(QSplashScreen);
         QPainter painter(this);
+        painter.setLayoutDirection(layoutDirection());
         if (!d->pixmap.isNull())
             painter.drawPixmap(QPoint(), d->pixmap);
         drawContents(&painter);