ALSA: usb-audio - rework quirk for TerraTec Aureon USB 5.1 MkII

This patch changes yet again the ID for the TTA cards, resulting in a
more reasonable name:
 1 [Aureon51MkII   ]: USB-Audio - Aureon5.1MkII
    TerraTec Aureon5.1MkII at usb-0000:00:03.0-2, full speed

Signed-off-by: Andrea Borgia <andrea@borgia.bo.it>
Signed-off-by: Takashi Iwai <tiwai@suse.de>