ice: support FW Recovery Mode

ice: support FW Recovery Mode

Recovery Mode is intended to recover from a fatal failure scenario in
which the device is not accessible to the host, meaning the firmware is
non-responsive.

The purpose of the Firmware Recovery Mode is to enable software tools to
update firmware and/or device configuration so the fatal error can be
resolved.

Recovery Mode Firmware supports a limited set of admin commands required
for NVM update.
Recovery Firmware does not support hardware interrupts so a polling mode
is used.

The driver will expose only the minimum set of devlink commands required
for the recovery of the adapter.

Using an appropriate NVM image, the user can recover the adapter using
the devlink flash API.

Prior to 4.20 E810 Adapter Recovery Firmware supports only the update
and erase of the "fw.mgmt" component.

E810 Adapter Recovery Firmware doesn't support selected preservation of
cards settings or identifiers.

The following command can be used to recover the adapter:

$ devlink dev flash <pci-address> <update-image.bin> component fw.mgmt
  overwrite settings overwrite identifier

Newer FW versions (4.20 or newer) supports update of "fw.undi" and
"fw.netlist" components.

$ devlink dev flash <pci-address> <update-image.bin>

Tested on Intel Corporation Ethernet Controller E810-C for SFP
FW revision 3.20 and 4.30.

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Konrad Knitter <konrad.knitter@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>