update NEWS for libva-utils 2.10.0

Signed-off-by: Carl Zhang <carl.zhang@intel.com>
diff --git a/NEWS b/NEWS
index 6b6e5db..42d5fec 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,12 @@
-libva-utils NEWS -- summary of changes.  2020-09-11
+libva-utils NEWS -- summary of changes.  2020-12-18
 Copyright (C) 2009-2020 Intel Corporation
 
+Version 2.10.0 - 18.Dec.2020
+* add Mediacopy Sample code
+* Enable new caps for rate control TCBRC
+* Add support for a --repeat command line option to vp8enc.
+* fix one null pointer dereference risk 
+
 Version 2.9.0 - 11.Sep.2020
 * Fix KW issues
 * Add support for csc with RGBP