RDMA/cma: Export enum cma_state in <rdma/rdma_cm.h>

Move cma.c's internal definition of enum cma_state to enum rdma_cm_state
in an exported header so that it can be exported via RDMA netlink.
Signed-off-by: Nir Muchtar <nirm@voltaire.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

include/rdma/rdma_cm.h

@@ -111,6 +111,20 @@ struct rdma_cm_event {
 	} param;
 };
 
+enum rdma_cm_state {
+	RDMA_CM_IDLE,
+	RDMA_CM_ADDR_QUERY,
+	RDMA_CM_ADDR_RESOLVED,
+	RDMA_CM_ROUTE_QUERY,
+	RDMA_CM_ROUTE_RESOLVED,
+	RDMA_CM_CONNECT,
+	RDMA_CM_DISCONNECT,
+	RDMA_CM_ADDR_BOUND,
+	RDMA_CM_LISTEN,
+	RDMA_CM_DEVICE_REMOVAL,
+	RDMA_CM_DESTROYING
+};
+
 struct rdma_cm_id;
 
 /**