ionic: no link check until after probe

Don't bother with the link check during probe, let
the watchdog notice the first link-up.  This allows
probe to finish cleanly without any interruptions
from over excited user programs opening the device
as soon as it is registered.

Fixes: c672412f ("ionic: remove lifs on fw reset")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>