ALSA: firewire-motu: fulfill missing entries in Kconfig

This is trivial commit but fulfill missing entries in Kconfig for devices
supported by ALSA firewire-motu driver.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200511022540.161363-1-o-takashi@sakamocchi.jp


Signed-off-by: Takashi Iwai <tiwai@suse.de>