OWNERS: include cros_gsc

BUG=none
TEST=none

Change-Id: I89dbb50784f18ef9c105b7f9ad462cd518882195
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/pinweaver/+/5454992
Tested-by: Mary Ruthven <mruthven@chromium.org>
Reviewed-by: Jett Rink <jettrink@google.com>
Auto-Submit: Mary Ruthven <mruthven@chromium.org>
Commit-Queue: Jett Rink <jettrink@google.com>

OWNERS

diff --git a/OWNERS b/OWNERS
index 892db59..0221a70 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,6 +1,5 @@
+# The GSC firmware teams own the code in this repo.
+include chromiumos/owners:v1:/firmware/OWNERS.cros_gsc
+
 aashay@google.com
-apronin@chromium.org
 hcyang@google.com
-mruthven@chromium.org
-sukhomlinov@chromium.org
-vbendeb@chromium.org