Updated Italian language file (FS #7605 by Harry Tu)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14374 a1c6a512-1295-4272-9138-f99709370657
diff --git a/docs/CREDITS b/docs/CREDITS
index 1c400b3..220f34f 100644
--- a/docs/CREDITS
+++ b/docs/CREDITS
@@ -314,6 +314,7 @@
 Dieter Pellkofer
 Evgeniy Kachalin
 Lenny Koepsell
+Harry Tu
 The libmad team
 The wavpack team
 The ffmpeg team