- Fix another fallout from the if_alloc() conversion: previously, ifp->if_type was set to IFT_ETHER by ether_ifattach(), now it's done by if_alloc() so an assignment of if_type to IFT_PROPVIRTUAL after if_alloc() but before ether_ifattach() broke it. This makes arp(8) and friends happy about the fec interfaces, and will allow us to use if_setlladdr() on the fec interface.
- Set/reset IFF_DRV_RUNNING/IFF_DRV_OACTIVE in init() and stop() methods rather than in ioctl(), like the rest of the drivers do. This fixes a bug when an "ifconfig fec0 ipv4_address" would not have made the interface running, didn't launch the ticker function to track media status of bundled ports, etc.