[ALSA] Add DBRI driver on Sparcs

Documentation,SPARC,/sparc/Makefile
Add the DBRI driver on Sparcs by Martin Habets <mhabets@users.sourceforge.net>
(moved from alsa-driver tree).

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index fe95bb2..94887db 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -1178,6 +1178,13 @@
 
     Module supports up to 8 cards.
 
+  Module snd-sun-dbri (on sparc only)
+  -----------------------------------
+
+    Module for DBRI sound chips found on Sparcs.
+
+    Module supports up to 8 cards.
+
   Module snd-wavefront
   --------------------