Fix typo in OWNERS file

TBR=sergiyb@chromium.org
NOTRY=true

Change-Id: I95b677f5f1d0d3de815ad8d1d56301b1dcbbcd52
Reviewed-on: https://chromium-review.googlesource.com/c/1475391Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59623}

infra/OWNERS

 machenbach@chromium.org
 sergiyb@chromium.org
 tandrii@chromium.org
-tmrts@chromoium.org
\ No newline at end of file
+tmrts@chromium.org
\ No newline at end of file

infra/testing/OWNERS

@@ -2,4 +2,4 @@ set noparent
 
 machenbach@chromium.org
 sergiyb@chromium.org
-tmrts@chromoium.org
\ No newline at end of file
+tmrts@chromium.org
\ No newline at end of file