net: mscc: ocelot: use list_for_each_entry in ocelot_vcap_block_remove_filter

Simplify ocelot_vcap_block_remove_filter by using list_for_each_entry
instead of list_for_each.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>