enetc: Fix mdio bus removal on PF probe bailout

enetc: Fix mdio bus removal on PF probe bailout

This is the correct resolution for the conflict from
merging the "net" tree fix:
commit c8d87cf1f18d ("enetc: Remove the mdio bus on PF probe bailout")
with the "net-next" new work:
commit 1e670c3572b0 ("net: enetc: Use DT protocol information to set up the ports")
that moved mdio bus allocation to an ealier stage of
the PF probing routine.

Fixes: fea05a7701f0 ("Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net")
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>