[PATCH] via-rhine: NAPI poll enable

The poll_enable should be in init_registers before enabling interrupts, not
in tx_timeout.  Thanks for spotting it Roger.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Cc: Roger Luethi <rl@hellgate.ch>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>