Add owners for IPsec CTS

Test: Owners file changes only; no code changes
Bug: 262779843
Change-Id: Iec9fbfcdba4f033884b5f167931c4cfea12b43f8
diff --git a/tests/cts/OWNERS b/tests/cts/OWNERS
index 089d06f..50842a8 100644
--- a/tests/cts/OWNERS
+++ b/tests/cts/OWNERS
@@ -5,3 +5,6 @@
 # Only temporary ownership to improve ethernet code quality (b/236280707)
 # TODO: remove by 12/31/2022
 per-file net/src/android/net/cts/EthernetManagerTest.kt = prohr@google.com #{LAST_RESORT_SUGGESTION}
+
+# IPsec
+per-file **IpSec* = benedictwong@google.com, nharold@google.com