ALSA: dummy - Increase MAX_PCM_SUBSTREAMS to 128

Increase the limit of PCM substreams to 128.  The default value is
unchanged; only the max accept value is increased.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c
index ccfbdfa..6ba066c 100644
--- a/sound/drivers/dummy.c
+++ b/sound/drivers/dummy.c
@@ -42,7 +42,7 @@
 MODULE_SUPPORTED_DEVICE("{{ALSA,Dummy soundcard}}");
 
 #define MAX_PCM_DEVICES		4
-#define MAX_PCM_SUBSTREAMS	16
+#define MAX_PCM_SUBSTREAMS	128
 #define MAX_MIDI_DEVICES	2
 
 #if 0 /* emu10k1 emulation */