Add the ability to handle a '<protocol>_auxspeeds' interface_capability, which is a comma-separated list of speeds other than the default which an interface supports.
Add the ability to handle a '<protocol>_auxspeeds'
interface_capability, which is a comma-separated list of speeds other
than the default which an interface supports.

nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome