X32 is fully implemented in master

[H.J. Lu]

Hi,

I merged hjl/abi branch.  Here is a patch to mention it in NEWS.
Does it look OK?

Thanks.

-- 
H.J.
---
iff --git a/NEWS b/NEWS
index 02ddc64..60d1389 100644
--- a/NEWS
+++ b/NEWS
@@ -30,6 +30,9 @@ Version 2.16
   14036, 14040, 14043, 14044, 14049, 14053, 14055, 14059, 14064, 14075,
   14080, 14083, 14103, 14104, 14109, 14112, 14122, 14123, 14153

+* Support for x32.  Implemented by H.J. Lu.
+  Visit <http://sites.google.com/site/x32abi/> for x32 psABI info.
+
 * ISO C11 support:

   + define static_assert