[patch] Mention DWP V2 support in NEWS

[Doug Evans]

Hi.

A NEWS entry to accompany this patch:

https://sourceware.org/ml/gdb-patches/2013-09/msg00982.html

2013-09-27  Doug Evans  <dje@google.com>

	* NEWS: Mention support for DWP file format version 2.

Index: NEWS
===================================================================
RCS file: /cvs/src/src/gdb/NEWS,v
retrieving revision 1.616
diff -u -p -r1.616 NEWS
--- NEWS	25 Sep 2013 23:17:11 -0000	1.616
+++ NEWS	27 Sep 2013 23:02:04 -0000
@@ -3,6 +3,8 @@
 
 *** Changes since GDB 7.6
 
+* GDB now supports Fission DWP file format version 2.
+
 * New convenience function "$_isvoid", to check whether an expression
   is void.  A void expression is an expression where the type of the
   result is "void".  For example, some convenience variables may be