Fix link autonegotiation timer.

Start link negotiation in the open method.  Previously it was started
on driver initialialization and shutdown on close so an ifdown would
have results in closing negotiation for good.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

diff --cc drivers/net/ioc3-eth.c
Simple merge