Add more Gatekeeper OWNERS

Test: none
Change-Id: Id27ab0fec14e9290820eabff5a5f0ccb3d8eada4
diff --git a/gatekeeperd/OWNERS b/gatekeeperd/OWNERS
index 9c99c6e..04cd19e 100644
--- a/gatekeeperd/OWNERS
+++ b/gatekeeperd/OWNERS
@@ -1,2 +1,5 @@
+# Bug component: 1124862
+drysdale@google.com
+oarbildo@google.com
+subrahmanyaman@google.com
 swillden@google.com
-jdanis@google.com