Tiled image modes don't work on some GLES2 implementations when using non-power of two sized textures

The Declarative Image item supports several fill modes. If a 'tiled' fill mode is used, then the image won't be displayed if the OpenGL ES2 implementation does not support the texture size. The QGL2PaintEngineExPrivate::updateTextureFilter method sets the GL_REPEAT texture wrap mode without checking the texture size.