Add oslo.policy to lib/oslo and stackrc

As per the graduation work items, any new libraries should be
added to lib/oslo and stackrc

partially implements bp graduate-policy

Change-Id: Ief8f28715ecff5a602d6d840d736ea07b5e7ff39
diff --git a/lib/oslo b/lib/oslo
index 31c9d34..effde90 100644
--- a/lib/oslo
+++ b/lib/oslo
@@ -31,6 +31,7 @@
 GITDIR["oslo.log"]=$DEST/oslo.log
 GITDIR["oslo.messaging"]=$DEST/oslo.messaging
 GITDIR["oslo.middleware"]=$DEST/oslo.middleware
+GITDIR["oslo.policy"]=$DEST/oslo.policy
 GITDIR["oslo.rootwrap"]=$DEST/oslo.rootwrap
 GITDIR["oslo.serialization"]=$DEST/oslo.serialization
 GITDIR["oslo.utils"]=$DEST/oslo.utils
@@ -65,6 +66,7 @@
     _do_install_oslo_lib "oslo.log"
     _do_install_oslo_lib "oslo.messaging"
     _do_install_oslo_lib "oslo.middleware"
+    _do_install_oslo_lib "oslo.policy"
     _do_install_oslo_lib "oslo.rootwrap"
     _do_install_oslo_lib "oslo.serialization"
     _do_install_oslo_lib "oslo.utils"