This change cleans up some of the Linux Bond and Linux Bridge logic
that processes member interfaces and VLANs.
One bug is fixed, where a VLAN might be assigned as a slave
interface on a bond.
Changes were made so that if VLANs are placed under a Linux Bond,
the PHYSDEV is set to the bond, so the device: does not need to
be specified in the config.
This change ensures that if a bridge has a bond and VLANs as members,
that the VLAN will be a member of the bridge and not the bond.
Change-Id: Id329737f0032e781b111741086ded83f378297a7
b0b09a65b6