mlx4_core: resolvs kernel panic when connectx_port_config fail to set ports

mlx4_core: resolvs kernel panic when connectx_port_config fail to set ports

When changing ports configutation (e.g. from ib,ib to eth,eth)
the device is disconnected from interfaces and catas error lists
than we change ports config and reconnecting the device.
In case ports config changing fails the device left disconnected.
If we try again to configure the ports the driver retry to
disconnect the device form its lists and crashes in list_del
function.  To aviod this the list_del replaced by list_del_init
(to allow redeleting the device).

Signed-off-by: Moshe Lazer <moshel@mellanox.com>
(Ported from Mellanox OFED 2.4)

Signed-off-by: Mukesh Kacker <mukesh.kacker@oracle.com>