dpaa2-eth: fix return codes used in ndo_setup_tc

dpaa2-eth: fix return codes used in ndo_setup_tc

[ Upstream commit b89c1e6bdc73f5775e118eb2ab778e75b262b30c ]

Drivers ndo_setup_tc call should return -EOPNOTSUPP, when it cannot
support the qdisc type. Other return values will result in failing the
qdisc setup.  This lead to qdisc noop getting assigned, which will
drop all TX packets on the interface.

Fixes: ab1e6de2bd49 ("dpaa2-eth: Add mqprio support")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Tested-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>