[ALSA] fix port type bits

Fix the port information about non-MIDI messages that had wrong values
for some OPL3 and EmuX ports.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
diff --git a/sound/drivers/opl3/opl3_seq.c b/sound/drivers/opl3/opl3_seq.c
index 57becf3..2aece1b 100644
--- a/sound/drivers/opl3/opl3_seq.c
+++ b/sound/drivers/opl3/opl3_seq.c
@@ -203,7 +203,7 @@
 						      SNDRV_SEQ_PORT_CAP_SUBS_WRITE,
 						      SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC |
 						      SNDRV_SEQ_PORT_TYPE_MIDI_GM |
-						      SNDRV_SEQ_PORT_TYPE_SYNTH,
+						      SNDRV_SEQ_PORT_TYPE_DIRECT_SAMPLE,
 						      16, voices,
 						      name);
 	if (opl3->chset->port < 0) {