Hi.

This patch lets gianfar work on 83xx (or 85xx??) boards that have 
Generic PHYs on them that do _NOT_ happen to have an IRQ line wired to 
external_15.  Surely reasonable that if we can't ID the PHY that its 
probably not irq-wired the Freescale-ADS "way"...

It was critical for us; perhaps usefull for others.

-dbu.