Add Denes Balatoni to the credits


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18718 a1c6a512-1295-4272-9138-f99709370657
diff --git a/docs/CREDITS b/docs/CREDITS
index dac6c75..f71b9a8 100644
--- a/docs/CREDITS
+++ b/docs/CREDITS
@@ -420,6 +420,7 @@
 Francisco Vila
 Christian Lees
 Rafaël Carré
+Denes Balatoni
 
 The libmad team
 The wavpack team