Add support for net.bridge capability

[Dan Williams]

On Sun, 2008-02-24 at 03:30 +0100, Marcel Holtmann wrote:
> Hi David,
> 
> when using bridge devices in Linux, they get classified as normal
> Ethernet devices. However I think we should clearly mark them as bridge
> devices and assign net.bridge capability to them. The attached patch
> does exactly this.

This is probably Good Thing; I should add bits to NM to ignore bridge
devices for now since they will be handled badly at the moment.

Dan