Add Karim Boucher for his initial work on the mpegplayer assembler IDCT for coldfire.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15163 a1c6a512-1295-4272-9138-f99709370657
diff --git a/docs/CREDITS b/docs/CREDITS
index b97b680..4bf20c3 100644
--- a/docs/CREDITS
+++ b/docs/CREDITS
@@ -343,6 +343,7 @@
 Brian J. Morey
 Stijn Hisken
 Bertrik Sikken
+Karim Boucher
 
 The libmad team
 The wavpack team