AUTHORS: Add Shu Shen.

Signed-off-by: Ben Pfaff <blp@nicira.com>

AUTHORS

@@ -134,6 +134,7 @@ Scott Lowe              scott.lowe@scottlowe.org
 Selvamuthukumar         smkumar@merunetworks.com
 Shan Wei                davidshan@tencent.com
 Shih-Hao Li             shli@nicira.com
+Shu Shen                shu.shen@radisys.com
 Simon Horman            horms@verge.net.au
 Simon Horman            simon.horman@netronome.com
 Sorin Vinturis          svinturis@cloudbasesolutions.com