[ALSA] dbri - Use linux/of.h instead of asm/prom.h

The linux/of.h header should be used instead of asm/prom.h.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

sound/sparc/dbri.c

@@ -66,7 +66,7 @@
 #include <sound/control.h>
 #include <sound/initval.h>
 
-#include <asm/prom.h>
+#include <linux/of.h>
 #include <asm/sbus.h>
 #include <asm/atomic.h>