[ECOS] The CYGPKG_DEVS_ETH_ARM_AT91_PHYADDR setting seem's to be not needed

["Oliver Munz @ SNR" <oli at snr dot ch>]

In the AT91-Ethernet-Driver is the parameter 
CYGPKG_DEVS_ETH_ARM_AT91_PHYADDR. It should hold the MDC/MDIO-addres of 
the Ethernet-PHY. But no matter wich value i write, the lwIP sees my PHY 
every time. Furtermore the lwIP says, he find my PHY on the addr 0, 
while the datasheet of the PHY say's one can config the address between 
1..7.

Now my quistions:
1. Is addr 0 a kind of broadcast and works with any PHY no matter how 
its configured?
2. Is it wrong, that if i set CYGPKG_DEVS_ETH_ARM_AT91_PHYADDR to 7, the 
lwIP-initialisation says look at addr 0 (see printout)?

AT91_ETH: Initialising @ fffdc000
AT91_ETH: Installing Interrupts on IRQ 16
AT91_ETH - Warning! ESA unknown
AT91_ETH: 12:34:56:78:9a:bc
PHY: Micrel KSZ8041 at addr 0
ksz8041_stat(): phy_addr: 0
... waiting for auto-negotiation

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