ionic: set ionic ptr before setting up ethtool ops

ionic: set ionic ptr before setting up ethtool ops

Set the lif->ionic value that is used in some ethtool callbacks
before setting ethtool ops.  There really shouldn't be any
race issues before this change since the netdev hasn't been
registered yet, but this seems more correct.

Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Brett Creeley <brett.creeley@amd.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Link: https://lore.kernel.org/r/20231204210936.16587-3-shannon.nelson@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>