[ALSA] add more sequencer port type information bits

Add four new information flags SNDRV_SEQ_PORT_TYPE_HARDWARE, _SOFTWARE,
_SYNTHESIZER, _PORT for sequencer ports.  This makes it easier for apps
like Rosegarden to make policy decisions based on the port type.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
diff --git a/sound/synth/emux/emux_seq.c b/sound/synth/emux/emux_seq.c
index 58838f7..d176cc0 100644
--- a/sound/synth/emux/emux_seq.c
+++ b/sound/synth/emux/emux_seq.c
@@ -54,7 +54,9 @@
 #define DEFAULT_MIDI_TYPE	(SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC |\
 				 SNDRV_SEQ_PORT_TYPE_MIDI_GM |\
 				 SNDRV_SEQ_PORT_TYPE_MIDI_GS |\
-				 SNDRV_SEQ_PORT_TYPE_MIDI_XG)
+				 SNDRV_SEQ_PORT_TYPE_MIDI_XG |\
+				 SNDRV_SEQ_PORT_TYPE_HARDWARE |\
+				 SNDRV_SEQ_PORT_TYPE_SYNTHESIZER)
 
 /*
  * Initialise the EMUX Synth by creating a client and registering