Update the owner file for recovery system tests

The owner file covers unit tests for recovery system.

Test: build
Change-Id: Icab312759d376095566077e3dd0fdc878566712b
diff --git a/services/tests/servicestests/src/com/android/server/recoverysystem/OWNERS b/services/tests/servicestests/src/com/android/server/recoverysystem/OWNERS
new file mode 100644
index 0000000..3880038
--- /dev/null
+++ b/services/tests/servicestests/src/com/android/server/recoverysystem/OWNERS
@@ -0,0 +1 @@
+include /services/core/java/com/android/server/recoverysystem/OWNERS