Patch for Atheros AR8161/AR8162/AR8171/AR8172 chipsets

Below is a patch to add support for Atheros AR8161, AR8162, AR8171, and AR8172 chipsets. A version of this was originally submitted by Atanas Vladimirov in early 2015 (see reference below) but never merged, so I have updated it for current and have been using it all afternoon without any issues:

Re: Add MDNS lookup for libc.

Cool!!! U did a great job!!! I was looking for exactly same.:) which bonjour version u have used ? Can i access your source code (openmdns)? Keep up the good work!!!