It doesn't. Probably because they aren't set to 30°.
The patent associated with the Quiet Wing mod specifies that the inboard flaps are re-rigged 7° down and the outers 3.5° (so around 5° down on average) so that the effective flap angle with 25° set is approximately 30°.
But I don't think the drooped angles are placarded as such, so it will still be nominally 25°.