deadlock on arbitrated + TCP transport changes

[pgu-swir]

I have done a port on another platform but I assume you are not really interested by that. During that, I've made a few changes that you might be interested in.

• fix the deadlock in arbitrated reference here Arbitrated client stucks -> dead lock #93 by simply using the PHY layer timeout
• some proposal on arbitrated for TCP as well where I think the client should not respond by success when the server is not connected. It created another deadlock

[Hadatko]

Hi @pgu-swir , maybe the maintainer or author are not interested for port to another platform, other people who are visiting these websites can be. If you would do another pullrequest with port to other platform i believe maintainer will approve that pull request. Of course he will not maintain code in future. That will be on community. This was done with mbed os port.
#81

[pgu-swir]

ok, I'll change that then