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Use priv->ds->num_ports on all for loops which configure the switch
registers. In the future, the value of MT7530_NUM_PORTS will depend on
priv->id. Therefore, this change prepares the subdriver for a simpler
implementation.
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: David S. Miller <davem@davemloft.net>