Actually pass QGLFormat to QGLWidget

GGLWidgetInternal wasn't passing the format it received to the parent
constructor, meaning the format wasn't used at all. This make the Qt UI
properly initialize a 3.2 context.

src/citra_qt/bootmanager.cpp

@@ -77,7 +77,7 @@ void EmuThread::Stop()
 class GGLWidgetInternal : public QGLWidget
 {
 public:
-    GGLWidgetInternal(QGLFormat fmt, GRenderWindow* parent) : QGLWidget(parent)
+    GGLWidgetInternal(QGLFormat fmt, GRenderWindow* parent) : QGLWidget(fmt, parent)
     {
         parent_ = parent;
     }