OWNERS: add more people from factory team

Add more people to OWNERS list.

BUG=None
TEST=None

Change-Id: I099974b20a52321d3edb854bb4062d1da25cd994
Reviewed-on: https://chromium-review.googlesource.com/1716678
Tested-by: Wei-Han Chen <stimim@chromium.org>
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Wei-Han Chen <stimim@chromium.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Chun-ta Lin (ping on chat if not responsive) <itspeter@chromium.org>
diff --git a/OWNERS b/OWNERS
index 838a419..9a77011 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,5 +1,19 @@
 set noparent
 
 # The factory repo is owned by Chrome OS factory team.
+chenghan@chromium.org
+chuntsen@chromium.org
+ckclark@chromium.org
+cyueh@chromium.org
+frankbozar@chromium.org
+fshao@chromium.org
+hmchu@chromium.org
+hungte@chromium.org
 itspeter@chromium.org
+jamesqaq@chromium.org
+menghuan@chromium.org
+phoenixshen@chromium.org
+pihsun@chromium.org
+shihyingchen@chromium.org
 stimim@chromium.org
+yhong@chromium.org