e1000e: initial support for i219

i219 is the next-generation LOM that will be available on systems with the
Sunrise Point Platform Controller Hub (PCH) chipset from Intel.  This patch
provides the initial support for the device.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Tested-by: Carmen Edwards <carmenx.edwards@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>