AnimatedSprite does not correctly respect 'loops'

To reproduce:

1. Run examples/quick/imageelements/animatedsprite.qml
2. Note that the speaker only does one rotation, rather than the 3 specified by 'loops'

I think the issue only occurs when the frames do not fit in a single row, as this code:

if (m_curFrame > frameAt) //went around
    m_curLoop++;

looks as if it could be triggered when changing rows, and not only when starting a new loop.