[PATCHv4] ARM: at91: Fix link breakage when !CONFIG_PHYLIB

[Arnd Bergmann]

On Wednesday 05 June 2013, Alexandre Belloni wrote:
> Fixes:
> arch/arm/mach-at91/built-in.o: In function `ksz9021rn_phy_fixup':
> :(.text+0x1174): undefined reference to `mdiobus_write'
> :(.text+0x1188): undefined reference to `mdiobus_write'
> :(.text+0x119c): undefined reference to `mdiobus_write'
> :(.text+0x11b0): undefined reference to `mdiobus_write'
> arch/arm/mach-at91/built-in.o: In function `sama5_dt_device_init':
> :(.init.text+0x1e34): undefined reference to `phy_register_fixup_for_uid'
> 
> when CONFIG_PHYLIB is not selected.
> 
> Signed-off-by: Alexandre Belloni <alexandre.belloni at free-electrons.com>

Acked-by: Arnd Bergmann <arnd at arndb.de>