Add James Espinoza for his work on the Gigabeat S port - he should have been added earlier

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15571 a1c6a512-1295-4272-9138-f99709370657
diff --git a/docs/CREDITS b/docs/CREDITS
index 4bf20c3..5a5d369 100644
--- a/docs/CREDITS
+++ b/docs/CREDITS
@@ -344,6 +344,7 @@
 Stijn Hisken
 Bertrik Sikken
 Karim Boucher
+James Espinoza
 
 The libmad team
 The wavpack team