add Kirk Shoop to AUTHORS

BUG=423975
R=rbyers@chromium.org

Review URL: https://codereview.chromium.org/1090293002

Cr-Commit-Position: refs/heads/master@{#325727}

AUTHORS

@@ -285,6 +285,7 @@ Kevin M. McCormick <mckev@amazon.com>
 Kihong Kwon <kihong.kwon@samsung.com>
 Kim Christensen <kimworking@gmail.com>
 Kingshuk Jana <kingshuk.j@samsung.com>
+Kirk Shoop <kirk.shoop@microsoft.com>
 Klemen Forstnerič <klemen.forstneric@gmail.com>
 Krishna Chaitanya <krish.botta@samsung.com>
 Kristof Kosztyo <kkosztyo.u-szeged@partner.samsung.com>