sparx5: add support for configuring PSFP via tc

Add support for tc actions gate and police, in order to implement
support for configuring PSFP through tc.

Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>