ALSA: opti9xx: mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Addresses-Coverity-ID: 402016 ("Missing break in switch")
Addresses-Coverity-ID:
1056542 ("Missing break in switch")
Addresses-Coverity-ID:
1339579 ("Missing break in switch")
Addresses-Coverity-ID:
1369526 ("Missing break in switch")
Addresses-Coverity-ID:
1369529 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>