ALSA: usb-audio: add front jack channel selector for EMU0204
ALSA: usb-audio: add front jack channel selector for EMU0204

Add support for front jack channel selector which is present on EMU0204.
It allows to get 4 channels out of this soundcard.

Tested-by: Yury Bushmelev <8bfd13cad0bc4b2ac41d9e235951e72c9b62c2aa@jay-tech.ru>
Signed-off-by: Vasily Khoruzhick <2750baa0af9b656228a0c6ae55ea7df1c78e68de@gmail.com>
Signed-off-by: Takashi Iwai <4596b3305151c7ee743192a95d394341e3d3b644@suse.de>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs