Fix error when using terminal

RxTx library is bundled with debugger plugin, however it should be exported,
so that terminal view plugin can use it.

Signed-off-by: Anton Kolesov <anton.kolesov@synopsys.com>
Set valid properties for COM port

Speed: 115200, data bits: 8, stop bits: 1, parity: None, flow control:
XON/XOFF.

Signed-off-by: Anton Kolesov <anton.kolesov@synopsys.com>