OWNERS: update testplatform inclusion for generated protos

Change-Id: I8dab1cb40bf017d4ae7162b323b4ef16829fbb79
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/2289113
Reviewed-by: Dhanya Ganesh <dhanyaganesh@chromium.org>
Commit-Queue: Sean Abraham <seanabraham@chromium.org>
Tested-by: Sean Abraham <seanabraham@chromium.org>
diff --git a/api/gen/OWNERS b/api/gen/OWNERS
new file mode 100644
index 0000000..9b0bd8c
--- /dev/null
+++ b/api/gen/OWNERS
@@ -0,0 +1,6 @@
+# Primary reviewers
+include chromiumos/chromite:/OWNERS.build
+
+# Other teams who need to regenerate these files sometimes
+include chromiumos/chromite:/OWNERS.ci
+include chromiumos/chromite:/OWNERS.testplatform
diff --git a/api/gen/test_platform/OWNERS b/api/gen/test_platform/OWNERS
deleted file mode 100644
index e4ee00d..0000000
--- a/api/gen/test_platform/OWNERS
+++ /dev/null
@@ -1,5 +0,0 @@
-jkop@chromium.org
-linxinan@chromium.org
-pprabhu@chromium.org
-zamorzaev@chromium.org
-