staging: fsl-dpaa2/ethsw: register_netdev only when ready

The register_netdev() call should be made only when ready to process any
user request on the interface. Move the call to be the last one issued
in the probe sequence.

Reported-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Link: https://lore.kernel.org/r/1565700187-16048-10-git-send-email-ioana.ciornei@nxp.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>