ALSA: dice: Move file to its own directory

In followed commits, dice driver is split into several files. For easily
managing these files, this commit adds subdirectory and move file into
the directory.
Signed-off-by: NTakashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/firewire/Makefile

 snd-firewire-lib-objs := lib.o iso-resources.o packets-buffer.o \
 			 fcp.o cmp.o amdtp.o
-snd-dice-objs := dice.o
 snd-firewire-speakers-objs := speakers.o
 snd-isight-objs := isight.o
 snd-scs1x-objs := scs1x.o
 
 obj-$(CONFIG_SND_FIREWIRE_LIB) += snd-firewire-lib.o
-obj-$(CONFIG_SND_DICE) += snd-dice.o
+obj-$(CONFIG_SND_DICE) += dice/
 obj-$(CONFIG_SND_FIREWIRE_SPEAKERS) += snd-firewire-speakers.o
 obj-$(CONFIG_SND_ISIGHT) += snd-isight.o
 obj-$(CONFIG_SND_SCS1X) += snd-scs1x.o

sound/firewire/dice/Makefile

+snd-dice-objs := dice.o
+obj-m += snd-dice.o

sound/firewire/dice.c → sound/firewire/dice/dice.c

@@ -26,9 +26,9 @@
 #include <sound/initval.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
-#include "amdtp.h"
-#include "iso-resources.h"
-#include "lib.h"
+#include "../amdtp.h"
+#include "../iso-resources.h"
+#include "../lib.h"
 #include "dice-interface.h"