jme: Refill receive unicase MAC addr after resume

The value of the register which holds receive Unicast MAC Address
sometimes get messed-up after resume.
This patch refill it before enabling the hardware filter.

Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org>
Signed-off-by: David S. Miller <davem@davemloft.net>