uboot-imx

net: sunxi-emac: Write HW address via function

Currently the mac address is programmed directly in _sunxi_emac_eth_init
making it a one time inflexible operation. By moving it into a separate
function, we can now use this more flexibly.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>