OWNERS: Replace furquan with shchen

BUG=None
TEST=None

Change-Id: I48ca1df4f5e9abe8159ff36f91d30f06c10c2d50
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/edk2/+/3238906
Tested-by: Furquan Shaikh <furquan@chromium.org>
Auto-Submit: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Dossym Nurmukhanov <dossym@chromium.org>
Commit-Queue: Dossym Nurmukhanov <dossym@chromium.org>
diff --git a/OWNERS b/OWNERS
index 9eb9764..5e08488 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1 +1 @@
-furquan@chromium.org
+shchen@chromium.org