ice: Flesh out implementation of support for SRIOV on bonded interface

Add in the functions that will allow a VF created on the primary interface
of a bond to "fail-over" to another PF interface in the bond and continue
to Tx and Rx.

Add in an ordered take-down path for the bonded interface.

Reviewed-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

Author: dmertman