ALSA: usb-audio: Clean up quirk entries with macros

Introduced a couple of macros to simplify some quirk entries.
Just cosmetic, no functional changes.

Link: https://lore.kernel.org/r/20200527061227.24915-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>