[RESEND PATCH 3/4] net: qrtr: Broadcast DEL_CLIENT message when endpoint is closed

Per the QMUXv2 protocol specificiation a DEL_CLIENT message should be broadcasted when an endpoint is disconnected. The protocol specification does suggest that the router can keep track of which nodes the endpoint has been communicating with to not wake up sleeping remotes unecessarily, but

[PATCH 3/4] net: qrtr: Broadcast DEL_CLIENT message when endpoint is closed

Per the QMUXv2 protocol specificiation a DEL_CLIENT message should be broadcasted when an endpoint is disconnected. The protocol specification does suggest that the router can keep track of which nodes the endpoint has been communicating with to not wake up sleeping remotes unecessarily, but