ice: update PHY type to ethtool link mode mapping

Some link modes can be more accurately reported due to newer link mode
values that have been added to the kernel; update those PHY type to report
modes that better reflect the link mode.

Signed-off-by: Paul Greenwalt <paul.greenwalt@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>