update Norwegian translation by Frederik Vestre


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9930 a1c6a512-1295-4272-9138-f99709370657
diff --git a/docs/CREDITS b/docs/CREDITS
index 53638e8..ba47872 100644
--- a/docs/CREDITS
+++ b/docs/CREDITS
@@ -200,3 +200,4 @@
 Steve Bavin
 Marianne Arnold
 Gaetano Vocca
+Frederik Vestre