Added ahassani@ to the OWNER file

BUG=none
TEST=none

Change-Id: Ia5a8db3ffeb90127b1eaab47c0779f949f29199f
Reviewed-on: https://chromium-review.googlesource.com/572100
Commit-Ready: Amin Hassani <ahassani@chromium.org>
Tested-by: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Ben Chan <benchan@chromium.org>
diff --git a/OWNERS b/OWNERS
index f64bd32..0bf7587 100644
--- a/OWNERS
+++ b/OWNERS
@@ -6,3 +6,4 @@
 
 # Chromium OS maintainers:
 benchan@google.com
+ahassani@google.com