net: ipc_router: Create remote port information for local connection

The intra-processor communication bypasses the flow control and access
control logic. Add remote port information for the endpoints in a fully
local connection, so that both flow control and access control can be
supported for such connections.

Change-Id: Id93ceea8907dd44acf41d0c6e960114c4d59024d
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@codeaurora.org>