seq: include UMP headers

Some applications seem including alsa/seqmid.h individually, and this
got broken with the update of alsa-lib because now we have
dependencies to UMP stuff.  Include the necessary UMP headers
internally.  Also, add the inclusion of rawmidi.h in ump.h for similar
reasons.

Link: https://bugzilla.suse.com/show_bug.cgi?id=1233682
Signed-off-by: Takashi Iwai <tiwai@suse.de>

include/seq.h

@@ -29,6 +29,8 @@
 #ifndef __ALSA_SEQ_H
 #define __ALSA_SEQ_H
 
+#include "ump.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif

include/seq_event.h

@@ -28,6 +28,8 @@
 #ifndef __ALSA_SEQ_EVENT_H
 #define __ALSA_SEQ_EVENT_H
 
+#include "ump_msg.h"
+
 /**
  *  \defgroup SeqEvents Sequencer Event Definitions
  *  Sequencer Event Definitions

include/ump.h

@@ -9,6 +9,8 @@
 #ifndef __ALSA_UMP_H
 #define __ALSA_UMP_H
 
+#include "rawmidi.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif