Spanish translation update by Victor Cardenas


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10766 a1c6a512-1295-4272-9138-f99709370657
diff --git a/docs/CREDITS b/docs/CREDITS
index 03db05b..ce4b2f5 100644
--- a/docs/CREDITS
+++ b/docs/CREDITS
@@ -233,3 +233,4 @@
 Wade Brown
 Vadim Chekan
 Christopher Borcsok
+Victor Cardenas