Updates & bug fixes for iseries_veth network driver

Hi y'all,

The following is a series of patches for the iseries_veth driver.

They're not ready for merging yet, as we need to do more extensive testing. 
However any feedback you have will be greatly appreciated.

cheers

-- 
Michael Ellerman
IBM OzLabs

email: michael:ellerman.id.au
inmsg: mpe:jabber.org
wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)

We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person