- Extended MidiDriver::sysEx to allow 264 byte sysEx messages

- Updated all drivers to allow 264+2 byte sysEx messages
- Implemented sysEx processing for MT-32 for Kyra1 and HoF. MT-32 should now be working properly.

svn-id: r35180

backends/midi/camd.cpp

@@ -115,9 +115,9 @@ void MidiDriver_CAMD::send(uint32 b) {
 }
 
 void MidiDriver_CAMD::sysEx(const byte *msg, uint16 length) {
-	unsigned char buf[256];
+	unsigned char buf[266];
 
-	assert(length + 2 <= 256);
+	assert(length + 2 <= ARRAYSIZE(buf));
 
 	// Add SysEx frame
 	buf[0] = 0xF0;