OS-1997 mpt_sas: expose LED controls to libtopo
Reviewed by: Keith Wesolowski <keith.wesolowski@joyent.com>

@@ -113,10 +113,14 @@
 #define TOPO_PCI_CLASS          "class-code"
 #define TOPO_PCI_AADDR          "assigned-addresses"
 
 #define TOPO_PGROUP_BINDING     "binding"
 #define TOPO_BINDING_OCCUPANT   "occupant-path"
+#define TOPO_BINDING_DRIVER     "driver"
+#define TOPO_BINDING_DEVCTL     "devctl"
+#define TOPO_BINDING_ENCLOSURE  "enclosure"
+#define TOPO_BINDING_SLOT       "slot"
 
 #define TOPO_PGROUP_STORAGE     "storage"
 #define TOPO_STORAGE_INITIATOR_PORT     "initiator-port"
 #define TOPO_STORAGE_INITIATOR_PORT_PM  "initiator-port-pm"
 #define TOPO_STORAGE_TARGET_PORT        "target-port"