[vdso] Update OWNERS

Change-Id: I5325e207e32d4136f4be920f42fcd2652664eb6b
Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/683655
Fuchsia-Auto-Submit: Roland McGrath <mcgrathr@google.com>
Commit-Queue: Auto-Submit <auto-submit@fuchsia-infra.iam.gserviceaccount.com>
Reviewed-by: Carlos Pizano <cpu@google.com>
diff --git a/zircon/vdso/OWNERS b/zircon/vdso/OWNERS
index 928dffe1..a4c42f4 100644
--- a/zircon/vdso/OWNERS
+++ b/zircon/vdso/OWNERS
@@ -1 +1,5 @@
 cpu@google.com
+joshuaseaton@google.com
+mcgrathr@google.com
+
+# Component: Zircon>kernel