teamd: LACP runner does not set Agg bit on first slave

teamd's LACP runner does not set the INFO_STATE_AGGREGATION bit when
there is only one slave in a team. This results in LACPDUs not being
sent with this flag set, and the team never negotiates. A Cisco Nexus
5500 switch will report the switchport in "(s)uspended" state.

This can be reproduced on some systems by booting with a LACP team with
more than one port, or by slowly adding ports to a new team on the
commandline.

Change the check from "more than 1 port" to "more than zero ports" so
that all LACP runner slaves have this bit set.

Resolves #15

Tested-by: Customer
Signed-off-by: Jamie Bainbridge <jamie.bainbridge@gmail.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>

teamd/teamd_runner_lacp.c

@@ -905,7 +905,7 @@ static void lacp_port_actor_update(struct lacp_port *lacp_port)
 		state |= INFO_STATE_EXPIRED;
 	if (lacp_port->state == PORT_STATE_DEFAULTED)
 		state |= INFO_STATE_DEFAULTED;
-	if (teamd_port_count(lacp_port->ctx) > 1)
+	if (teamd_port_count(lacp_port->ctx) > 0)
 		state |= INFO_STATE_AGGREGATION;
 	teamd_log_dbg("%s: lacp info state: 0x%02X.", lacp_port->tdport->ifname,
 						      state);