net/fec: no need to memzero private data

alloc_etherdev internally uses kzalloc, so the private data is already
zerod out.

Reported-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
1 file changed