ixgbe: add support for QSFP PHY types in ixgbe_get_settings()

Add missing QSFP PHY types to allow for more accurate reporting of
port settings.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>