Add Gajendra N <gajendra.n@samsung.com> to AUTHORS file.

R=pdr
NOTRY=true

Review URL: https://codereview.chromium.org/452453002

Cr-Commit-Position: refs/heads/master@{#288313}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@288313 0039d316-1c4b-4281-b951-d872f2087c98

AUTHORS

@@ -129,6 +129,7 @@ François Beaufort <beaufort.francois@gmail.com>
 Francois Kritzinger <francoisk777@gmail.com>
 Frédéric Wang <fred.wang@free.fr>
 Gaetano Mendola <mendola@gmail.com>
+Gajendra N <gajendra.n@samsung.com>
 Gajendra Singh <wxjg68@motorola.com>
 Gao Chun <chun.gao@intel.com>
 Gao Chun <gaochun.dev@gmail.com>