Add more OWNERS for build/sanitizers.

R=glider@chromium.org

Change-Id: Ia8a300ba5f993862502017d4e164388bd6e0206d
Reviewed-on: https://chromium-review.googlesource.com/c/1346466Reviewed-by: Alexander Potapenko <glider@chromium.org>
Commit-Queue: Abhishek Arya <inferno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610101}

build/sanitizers/OWNERS

-glider@chromium.org
+ochang@chromium.org
 eugenis@chromium.org
+glider@chromium.org
+inferno@chromium.org
+mbarbella@chromium.org
+metzman@chromium.org
+mmoroz@chromium.org
+rnk@chromium.org
 per-file tsan_suppressions.cc=*
 per-file lsan_suppressions.cc=*