ALSA: usb-audio: Add mode select quirk for Denon/Marantz DACs

ALSA: usb-audio: Add mode select quirk for Denon/Marantz DACs

[ Upstream commit 6874daad4b0fbed5b2f9bef7f4d3f2b895463a95 ]

Denon/Marantz USB DACs need a specific vendor command to switch between PCM and
DSD mode. This patch adds a new quirk function to switch between the two modes
using the specific USB vendor command.

This patch applies to the following devices:
- Marantz SA-14S1
- Marantz HD-DAC1

Signed-off-by: Jurgen Kramer <gtmkramer@xs4all.nl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>