The method was meant to zeroize ds->tagger_data but got the wrong
pointer. Fix this.
Fixes: c79e84866d2a ("net: dsa: tag_sja1105: convert to tagger-owned data") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>