ALSA: usb-audio: fix Amanero Combo384 quirk on big-endian hosts

Add missing endianness conversion when using the USB device-descriptor
bcdDevice field when applying the Amanero Combo384 (endianness!) quirk.

Fixes: 3eff682d ("ALSA: usb-audio: Support both DSD LE/BE Amanero firmware versions")
Cc: Jussi Laako <jussi@sonarnerd.net>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>