sis190: Rx filter init is needed for MAC address change.

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=34552



Signed-off-by: Klement Fish <klement2@azet.sk>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>