smsc911x suspend/resume

[Steve.Glendinning at smsc.com]

> Hmm, be careful about switching off power supplies that aren't supposed
> to be switched off while others are still powered. You can easily
> destroy hardware with that. Depending on how things are wired up
> internally, voltages can leak from one unit block to the other. Maybe
> Steve can can give a statement from official SMSC source about whether
> it is safe to switch off VDD33A in this case.

I've checked with the chip architects, no power planes should be 
externally
switched off in any suspend mode.

Steve