Allow mapper to introspect ObjectManager interface

There are a number of cases where daemons need the abilty to identify
where the object manager is for a particular path, so it can make use of
GetManagedObjects to reduce the number of dbus calls for enumerating
certain subsystems.

This pathset makes objectmanager show up in the mapper interfaces list.

Change-Id: If153ee412e751815f2e1aa41e32cae47336564c1
Signed-off-by: Ed Tanous <ed.tanous@intel.com>
diff --git a/recipes-phosphor/dbus/phosphor-dbus-interfaces-mapper-config-native.bb b/recipes-phosphor/dbus/phosphor-dbus-interfaces-mapper-config-native.bb
index 69cb14f..7c9d5da 100644
--- a/recipes-phosphor/dbus/phosphor-dbus-interfaces-mapper-config-native.bb
+++ b/recipes-phosphor/dbus/phosphor-dbus-interfaces-mapper-config-native.bb
@@ -10,4 +10,4 @@
 inherit native
 
 PHOSPHOR_MAPPER_SERVICE_append = " xyz.openbmc_project"
-PHOSPHOR_MAPPER_INTERFACE_append = " xyz.openbmc_project"
+PHOSPHOR_MAPPER_INTERFACE_append = " xyz.openbmc_project org.freedesktop.DBus.ObjectManager"