uboot-imx

nvedit: do not update global bi_enetaddr and do not call eth_set_enetaddr()

Since the ethernet layer handles updating of device addresses itself from
the environment, there is no point in calling eth_set_enetaddr().

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
CC: Ben Warren <biggerbadderben@gmail.com>