Adding myself to credits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42032 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CREDITS.TXT b/CREDITS.TXT
index e1e1af3..44577d5 100644
--- a/CREDITS.TXT
+++ b/CREDITS.TXT
@@ -106,6 +106,10 @@
 D: Miscellaneous bug fixes
 D: Register allocation refactoring
 
+N: Gordon Henriksen
+E: gordonhenriksen@mac.com
+D: C interface
+
 N: Raul Fernandes Herbster
 E: raul@dsc.ufcg.edu.br
 D: JIT support for ARM