Fspra 5319 support lw ip iperf

[congnguyen-renesas]

No description provided.

[canhphan-renesas]

The background for change is:

• The old line LWIPERF_FREE(lwiperf_state_tcp_t, dealloc); /* @todo: type? */ does not close and abort tcp_pcb section. So the lwiperf_abort API can not abort an iperf session successfully.
• We need to change old code by new lwiperf_tcp_close((lwiperf_state_tcp_t *)dealloc, LWIPERF_TCP_ABORTED_LOCAL); code. Because that line contains LWIPERF_FREE() function and it can close and abort tcp_pcb. So that the TCP iperf server and TCP iperf abort can work correctly by aborting the current iperf server and then restarting a new successful iperf server.