ALSA: dice: make amdtp_rates[] const

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
index f3d03dd..839ebf8 100644
--- a/sound/firewire/amdtp.h
+++ b/sound/firewire/amdtp.h
@@ -103,7 +103,7 @@
 unsigned long amdtp_out_stream_pcm_pointer(struct amdtp_out_stream *s);
 void amdtp_out_stream_pcm_abort(struct amdtp_out_stream *s);
 
-extern unsigned int amdtp_syt_intervals[CIP_SFC_COUNT];
+extern const unsigned int amdtp_syt_intervals[CIP_SFC_COUNT];
 
 static inline bool amdtp_out_stream_running(struct amdtp_out_stream *s)
 {